JP2010038275A - Hose clamp device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact hose clamp device which can prevent the movable hose from damaging. <P>SOLUTION: In the hose clamp device in a construction machinery, it is provided with a stationary plate 131 including a plain portion 131A on which a part of outer peripheral surface of the hose abuts and a folding portion 131B which is provided to an end in the flat portion 131A, a cover plate 133 oppositely disposed to the stationary plate and including a plain portion 133A which is provided in a direction orthogonal to an elongated direction of the hose and a folding portion 133B which is formed to an end in the flat portion, and an elastic member 132 including an arcuate groove 132A for hose engagement which is provided on a side of the stationary plate and a projecting track portion 132B which is provided on a side of the cover plate and is inserted between the folding portions 133B of the cover plate, and an edge portion 132C which is provided to make a clearance for chip surface of the folding portion of the cover plate. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hose clamp device for clamping a plurality of hoses for supplying and discharging pressure oil to and from hydraulic equipment in a construction machine, and more particularly to a hose clamp device capable of firmly fixing a movable hose. is there.

  The construction machine includes a plurality of hoses for supplying and discharging pressure oil for supplying pressure oil from a hydraulic source to each hydraulic device and collecting return oil from each hydraulic device in a tank. These pressure oil supply / discharge hoses are held and fixed by a clamp device.

  As an example of the clamping device, two rubber-made sandwiching members (elastic bodies) in which a semicircular arc-shaped hose fitting portion corresponding to the outer peripheral surface of the hose is recessed and disposed outside these sandwiching members. There are holders that hold the hoses in alignment with each other in the length direction of each clamping member by clamping each hose from the radial direction by these two clamping members and tightening the holder (for example, patents) Reference 1).

Japanese Utility Model Publication No. 5-81355

  The plurality of hoses for supplying and discharging pressure oil may be held and fixed on the fixed member side and the movable member side of the construction machine by this type of clamping device, respectively. In such a hose fixing and holding policy, when the movable member of the construction machine moves, the hose moves in response to the movement.

  When the hose moves in this way, the hose is repeatedly bent at the end of the clamping device, and therefore the two rubber-made clamping members (elastic bodies) constituting the clamping device are deteriorated by long-term use. As a result, the elastic force is significantly reduced. For this reason, the hose may repeatedly collide with the end portion of the holder constituting the clamp device and cause damage. Therefore, it is desired to improve this point.

  In addition, when the hydraulic oil must be supplied to each of a large number of hydraulic devices, the number of hoses naturally increases, but when the dimensions in the width direction for juxtaposing these hoses are limited, A plurality of hose groups must be stacked in multiple stages, but their height dimension becomes large, and it is desired to improve this point as well.

  The present invention has been made based on the above-described improvement request, and an object of the present invention is to provide a hose clamp device that can prevent a movable hose from being damaged and that enables a compact hose layout.

  In order to achieve the above object, a first invention is a hose clamp device for clamping a plurality of hoses for supplying and discharging pressure oil to and from hydraulic equipment in a construction machine, wherein a part of the outer peripheral surface of the hose is A flat plate that contacts, a fixed plate having a bent portion provided at an end of the flat plate that is orthogonal to the extending direction of the hose so as to face the opposite side of the hose, and opposed to the flat plate of the fixed plate Folded to the fixed plate side at both the flat portion provided in the arrangement direction of the plurality of hoses and the end portion orthogonal to the arrangement direction of the hose in the flat portion. A cover plate having a bent portion, an arc-shaped groove for engaging a hose, a protrusion inserted between the bent portions of the cover plate, and a front end surface of the bent portion of the cover plate The height of the ridge is An elastic member having a width greater than the depth of the bent portion of the bar plate, a width between the edge portions being longer than a width of the protruding portion, and approximately the same as the width between the bent portions, the fixing plate, and the cover plate And a spacer for pressing the elastic member.

  Further, in the first invention, the second invention further includes the elastic member, the cover plate, and the upper plate on the upper surface of the cover plate via the other hoses to clamp the other hoses. Provide a spacer.

  Furthermore, a third invention is the first or second invention, wherein a mounting bracket is provided at the one bent portion of the fixing plate.

  According to a fourth aspect of the present invention, in the first aspect, the fixing plate is directed to a first flat portion where a part of the outer peripheral surface of one of the plurality of hoses contacts and a direction away from the one hose. A first fixing plate having a first bent portion provided on both ends of the flat surface portion orthogonal to the direction in which the hose is disposed, and provided integrally with the first fixing plate, A second flat surface portion with which a part of the outer peripheral surfaces of the other plurality of hoses abuts, and an end portion orthogonal to the hose disposition direction in the second flat surface portion so as to go away from the other hose. A second fixing plate having a second bent portion provided on both of the first bent portion and the second bent portion, wherein the first bent portion and one of the second bent portions are the first plane. Part and the second flat part are connected to face the opposite side, and each of the first and second fixing plates The elastic member for clamping the over scan, the bolt the cover member via the spacer, fixed respectively.

  Further, in a fifth aspect based on the fourth aspect, a mounting bracket is integrally provided on a side portion of the cover plate corresponding to the other hose.

  According to the present invention, the movable hose can be firmly fixed and held on the fixed plate side by the configuration in which the protruding portion of the elastic member is inserted between the bent portions of the cover plate, and the edge of the elastic member. Since the escape at the end of the clamp device in the hose is made possible, the stress at the end of the clamp device can be kept small, and damage to the hose can be prevented. As a result, the life of the hose can be extended.

  Furthermore, since the elastic member is provided on one side of the hose, the height direction dimension can be reduced, and a hose clamp device that enables a compact hose layout can be provided.

Hereinafter, embodiments of the hose clamp device of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing a movable cab type construction machine provided with an embodiment of the hose clamp device of the present invention. In FIG. 1, the working device is omitted. In FIG. 1, reference numeral 1 denotes an endless track type hydraulic excavator as a construction machine, but the working device is omitted. The hydraulic excavator 1 is provided with a traveling body 2 capable of self-propelling, a revolving body 4 mounted on the traveling body 2 via a revolving device 3 so as to be capable of revolving, and capable of being raised and lowered on the front side of the revolving body 4. In general, it is composed of a working device for excavating earth and sand.

  The working device includes a boom that is pin-coupled to the front side of the revolving frame 4A that constitutes the revolving structure 4, an arm that is pin-coupled to the front end side of the boom, a bucket that is pin-coupled to the front end side of the arm, Are roughly constituted by a boom cylinder, an arm cylinder, and a bucket cylinder.

  Further, on the turning frame 4A constituting the turning body 4, a movable cab 5 installed on the left front side of the turning frame 4A, an engine mounted on the rear side of the turning frame 4A, a hydraulic pump ( Neither is shown), a counterweight 6 attached to the rear end of the turning frame 4A, and a building cover 7 provided on the turning frame 4A so as to cover the engine and the like.

  The movable cab 5 includes a link connecting portion 8 provided on the back portion thereof, a support frame 9 provided on the front end portion of the turning frame 4A, and a pivot extending from the support frame 9 to the front side and connected to the link connecting portion. Due to the configuration of the two link arms 10 and the cylinder 11 provided between the link connecting portion 8 and the support frame 9, it is supported so as to be swingable so as to draw an arc in the upward and downward directions.

  The hydraulic excavator 1 including the movable cab 5 described above can perform general excavation work and the like in a state where the cab 5 is lowered, as indicated by a two-dot chain line in FIG. On the other hand, as shown by the solid line, in the state where the cab 5 is raised by the cylinder 11, the operator's line of sight can be increased. For example, even when a box-like container such as a container is large, the inside can be viewed with a wide field of view. Can work while.

  The cylinder 11 is provided with a plurality of supply / discharge hoses 12 for supporting the movable cab 5 up and down from the support frame 9. The hose 12 is fixed to the support frame 9 and the upper link 10 by a hose clamp device 13 according to the present invention.

  In addition, a plurality of supply / discharge hoses 14 for controlling the working device are installed in the movable cab 5 from the support frame 9 through the link 10 and the link connecting portion 8 in the cab 5. ing. The hose 14 is fixed to the support frame 9 and the link connecting portion 8 by the hose clamp device 15 according to the present invention.

Next, an embodiment of the above-described hose clamp device 13 of the present invention will be described with reference to FIGS.
FIG. 2 is a front view showing an embodiment of the hose clamp device 13 of the present invention, and FIG. 3 is a side view of the embodiment of the hose clamp device 13 of the present invention shown in FIG. FIG. 4 is an exploded perspective view of an embodiment of the hose clamp device 13 of the present invention shown in FIG.

  In these drawings, the same reference numerals as those shown in FIG. The hose clamp device 13 includes a fixed plate 131, an elastic member 132, and a cover plate 133. The fixed plate 131 is in contact with the outer peripheral surface of the hose 12 and has a flat portion 131A extending in a direction orthogonal to the extending direction of the hose 12, and one end of the flat portion 131A in the hose extending direction opposite to the hose 12. A bent portion 131B directed to the side and a mounting bracket 131C for fixing are provided at the other end portion of the flat surface portion 131A in the hose extending direction.

  The mounting bracket 131C is provided with a bolt insertion hole 131E for inserting the bolt 131D. Thereby, if the bolt 131D is inserted into the bolt insertion hole 131E and the bolt 131D is screwed into the support frame 9 or the upper link 10, the fixing plate 131 can be fixed to the support frame 9 or the upper link 10, respectively.

  A screw seat 131F is fixed to the back of the side of the flat surface 131A of the fixed plate 131. The screw seat 131F is screwed with a bolt for pressing a cover plate 132 and an elastic member 132, which will be described later, toward the fixing plate 131.

  The elastic member 132 is disposed at a position facing the flat portion 131 </ b> A of the fixing plate 131 in the hose 12. As shown in FIG. 3, the elastic member 132 includes a plurality of arc-shaped grooves 132 </ b> A that are in contact with the outer peripheral surface of the hose 12 on the surface on the hose 12 side, and an extension (arrangement) of the hose 12 on the opposite surface of the hose 12. Ridge portion 132B provided in a direction orthogonal to the direction), an edge portion 132C provided in a direction orthogonal to the extending direction of the hose 12 at the hose side end portion of the ridge portion 132B, and a hose in the ridge portion 132B. 12 is provided with spacer insertion holes 132D provided at end portions in a direction orthogonal to the extending direction. The spacer 134 inserted into the spacer insertion hole 132D is a cylindrical body having a bolt insertion hole.

  The cover body 133 provided on the outer side of the elastic member 132 includes a flat portion 133A that contacts the upper surface of the protrusion 132B of the elastic member 132, and a direction of the fixing plate 131 at an end portion orthogonal to the hose extending direction in the flat portion 133A. And a bent portion 133B where the upper end surface of the protrusion 132B of the elastic member 132 contacts, and an insertion hole 133D of a bolt 133C provided at an end portion orthogonal to the hose extending direction in the flat portion 133A. ing.

  The configuration in which the upper end surface of the protrusion 132B of the elastic member 132 is in contact with the bent portion 133B of the cover body 133 has a function of suppressing the movement of the elastic member 132 due to the acting force acting in the extending direction of the hose 12. is doing. Further, the structure in which the inner surface of the flat portion 133A of the cover body 133 is brought into contact with the upper surface of the protruding portion 132B of the elastic member 132 is pressed by the cover body 133 applied to the upper surface of the protruding portion 132B of the elastic member 132. The force is applied to the hose 12 with certainty.

  In addition, the hose-side tip of the bent portion 133B of the cover body 133 faces the outer surface of the edge 132C of the elastic member 132 with a gap G with respect to the outer surface of the edge 132C of the elastic member 132. The gap and the edge portion 132C of the elastic member 132 allow the hose 12 to move when the hose 12 is moved, and contact the front end portion of the bent portion 133B of the cover body 133 when the hose 12 is moved. It has a function to prevent contact.

  In order to exert the above-described function, the elastic member 132 described above has the height of the protrusion 132B larger than the depth of the bent part 133B of the cover plate 133, and the width between the edges 132C is the width of the protrusion 132B. It has a longer cross-sectional shape that is about the same as the width between the bent portions 133B.

Next, the assembly of the embodiment of the hose clamp device 13 according to the present invention and the hose clamp operation will be described with reference to FIGS.
First, the fixing plate 131 is fixed to the support frame 9 and the upper link 10 shown in FIG. A plurality of hoses 12 are juxtaposed on the flat portion 131 </ b> A of the fixed plate 131.

  Next, the elastic member 132 is placed on the juxtaposed hose 12 via the spacer 134, and the protruding portion 132 </ b> B of the elastic member 132 is interposed between the bent portions 133 </ b> B of the cover body 133 on the elastic member 132. The cover body 133 is further placed so as to be inserted.

  In this state, the bolt 133C is inserted into the bolt insertion hole 133D of the cover body 133 and the spacer 134, and the tip of the bolt 133C is screwed into the screw seat 131F of the fixing plate 131, whereby the flat portion 133A of the cover body 133 is The inner surface comes into contact with the upper surface of the protrusion 132B of the elastic member 132, and compresses the elastic member 132. The elastic member 132 brings the hose 12 into close contact with the flat surface portion 131 </ b> A of the fixing plate 131 by the restoring force accompanying the compressive force acting on the upper surface of the protrusion 132 </ b> B. Thereby, the hose 12 can be firmly fixed to the fixing plate 132.

  Further, the hose 12 is moved so that a force in the extending direction acts on the hose 12. In this case, the hose 12 is firmly fixed to the fixing plate 132 against this acting force. . Further, as the hose moves, the hose 12 moves in the vertical direction on the paper surface of FIG. 2. In this case as well, the hose 12 is allowed to move by the edge 132C of the elastic member 132 and the hose 12 is hose. 12 is prevented from coming into contact with the tip of the bent portion 133B of the cover body 133 on the hose side.

  As described above, according to the embodiment of the hose clamp device of the present invention, the movable hose 12 is brought into contact with the flat surface portion 131A of the fixed plate 131 by the protrusion 132B of the elastic member 132. The hose 12 can be firmly fixed and held, and the edge 132C of the elastic member 132 prevents the end of the clamp device in the hose 12 from colliding with the cover body 133, thereby preventing the hose 12 from being damaged. can do. As a result, the life of the hose can be extended.

  Moreover, since it was set as the structure which provides the elastic member 132 in the one side of the hose 12, the dimension of the height direction in the hose clamp apparatus can be made small, and a compact hose clamp apparatus can be provided.

  Further, as the hose 12 moves, the elastic member 132 is repeatedly subjected to a compressive load in the hose extension direction. However, as described above, the hose 12 is in contact with the flat portion 131A of the fixed plate 131, so that the elastic member 132 Since the load acting in the hose extension direction 132 can be kept small, the fatigue deterioration of the elastic member 132 is small, and the life reduction due to it can be prevented.

  In the above-described embodiment, the spacer 134 is inserted. However, the spacer 134 may be fixed in advance on the flat portion 131A of the fixing plate 131 by welding or the like.

  In the above-described embodiment, the case where a plurality of hoses arranged side by side are clamped on one plane has been described. However, as shown in FIG. 5, if an elastic member 132, a cover body 133, and the like are further provided. It is also possible to arrange the hoses in multiple stages in the vertical direction.

  Also in this case, the same effect as the above-described embodiment can be obtained, and a large number of hoses can be clamped firmly and compactly.

  6 and 7 show another embodiment of the hose clamp device of the present invention. FIG. 6 is a front view showing an embodiment of the hose clamp device 15 of the present invention, and FIG. It is a disassembled perspective view of one Embodiment of the hose clamp apparatus 15 of this invention shown. In these drawings, the same reference numerals as those shown in FIGS. 1 to 4 are the same or corresponding parts, and detailed description thereof will be omitted.

This embodiment shows an example of clamping a hose 14 installed in multiple stages (two stages in this example) in the vertical direction. The difference from the above-described embodiment is that the hose clamp device shown in FIG. The other hose clamp device is reversed and provided in the hose extension direction. That is,
Of the two fixing plates 131 (the first and second fixing plates 131), the other fixing plate 131 is reversed with respect to the one fixing plate 131, and the hose 14 is shifted in the extending direction so as to be integrated. These fixing plates 131 are each provided with an elastic member 132, a cover body 133, and the like so that one of the plurality of hoses 14 and the other plurality of hoses 14 are clamped. is there.

  In this embodiment, as shown in FIG. 7, the spacer 134 that also serves as a screw seat is provided on the inner surface of the lower cover plate 133 and the other fixing plate 131 (the left fixing plate 131 in FIG. 5). The elastic member 132 does not have a spacer insertion hole and is disposed between the spacers 134. Further, a mounting bracket 131C is integrally provided on the side portion of the lower cover plate 133 in FIG. Is configured.

Next, assembly of the other embodiment of the hose clamp device 15 of the present invention and hose clamp operation will be described with reference to FIGS. 5 and 6.
First, the cover plate 133 is fixed to the support frame 9 and the link connecting portion 8 with the bolt 131D so that the bent portion 133B faces outward. The elastic member 132 is placed on the fixed cover plate 133 so that the protrusion 132B of the elastic member 132 is fitted between the bent portions 133B.

  Next, after placing the hose 14 in each arc-shaped groove 132A of the elastic member 132, one fixing plate 131 (the right-side fixing plate 131 in FIG. 6) is fixed to the spacer 134 with the bolt 133C. Thereby, the lower plurality of hoses 14 can be clamped.

  Next, similarly to the embodiment shown in FIG. 2 described above, the plurality of hoses 14 are juxtaposed on the flat portion 131A of the other fixing plate 131 (left fixing plate 131 in FIG. 6).

  Next, the elastic member 132 is placed on the juxtaposed hose 12, and the protruding portion 132 </ b> B of the elastic member 132 is inserted between the bent portions 133 </ b> B of the cover body 133 on the elastic member 132. The cover body 133 is further placed.

  In this state, the bolt 133C is screwed into the spacer 134 via the bolt insertion hole 133D of the cover body 133, so that the inner surface of the flat portion 133A of the cover body 133 is brought into contact with the upper surface of the protrusion 132B of the elastic member 132. It abuts and compresses the elastic member 132. The elastic member 132 brings the hose 14 into intimate contact with the flat portion 131A of the other fixing plate 131 by the restoring force accompanying the compressive force acting on the upper surface of the protrusion 132B. Thereby, the hose 14 can be firmly fixed to the other fixing plate 131.

  According to this embodiment, similar to the above-described embodiment, the movable hose 14 is brought into contact with the flat surface portion 131A of the fixed plate 131 by the protrusion 132B of the elastic member 132. While being able to be firmly fixed and held, the edge 132C of the elastic member 132 prevents the end of the clamping device in the hose 14 from colliding with the cover body 133, so that the hose 14 can be prevented from being damaged. it can. As a result, the life of the hose can be extended.

  Moreover, since it was set as the structure which provides the elastic member 132 in the one side of the hose 14, the dimension of the height direction in the hose clamp apparatus can be made small, and a compact hose clamp apparatus can be provided.

  Further, as the hose 14 moves, the elastic member 132 is repeatedly subjected to a compressive load in the hose extending direction. However, as described above, the hose 14 is in contact with the flat surface portion 131A of the fixing plate 131. Since the load acting in the hose extension direction 132 can be kept small, the fatigue deterioration of the elastic member 132 is small, and the life reduction due to it can be prevented.

  In addition, the two fixing plates 131 are inverted and integrated in a state shifted in the extending direction of the hose 14, and an elastic member 132, a cover body 133, etc. of each of these fixing plates 131 are provided, and the upper and lower stages are arranged in multiple stages. Since many hoses 14 to be installed are clamped, disassembly and assembling at the time of exchanging the hose are good, and the workability can be improved.

  In the above-described embodiment, the case where the hose for supplying / discharging the movable cab is clamped has been described. However, the main body of the construction machine and the body can be lifted and mounted thereon, for example, an articulated arm The present invention can also be applied to a case where a hose laid between a working machine having a clamp is clamped.

It is a front view which shows the construction machine of the movable cab type | mold provided with one Embodiment of the hose clamp apparatus of this invention. It is a front view showing one embodiment of the hose clamp device of the present invention. It is the side view which looked at one Embodiment of the hose clamp apparatus of this invention shown in FIG. 2 from the III-III arrow. It is a disassembled perspective view of one Embodiment of the hose clamp apparatus of this invention shown in FIG. It is a front view which shows other embodiment of the hose clamp apparatus of this invention. It is a front view which shows other embodiment of the hose clamp apparatus of this invention. It is a disassembled perspective view of further another embodiment of the hose clamp apparatus of this invention shown in FIG.

Explanation of symbols

12, 14 Hose 13, 15 Hose clamp device 131 Fixing plate 131A Planar portion 131B Bending portion 131C Mounting bracket 132 Elastic member 132A Arc-shaped groove 132B Projection portion 132C Edge portion 133 Cover plate 133A Planar portion 133B Bending portion

Claims (5)

A hose clamp device that clamps a plurality of hoses for supplying and discharging pressure oil to hydraulic equipment in a construction machine,
A flat plate with which a part of the outer peripheral surface of the hose abuts, and a fixing plate having a bent portion provided at an end of the flat plate perpendicular to the extending direction of the hose so as to go to the opposite side of the hose ,
The fixed plate side is arranged on both the flat portion provided in the arrangement direction of the plurality of hoses and the end portion orthogonal to the arrangement direction of the hose in the flat portion. A cover plate having a bent portion that is bent toward the
An arc-shaped groove for engaging a hose, a protrusion inserted between the bent portions of the cover plate, and an edge provided to face the front end surface of the bent portion of the cover plate, An elastic member in which the height of the protruding portion is larger than the depth of the bent portion of the cover plate, the width between the edge portions is longer than the width of the protruding portion, and is approximately the same as the width between the bent portions. When,
A spacer provided between the fixed plate and the cover plate;
A hose clamp device comprising: a bolt that presses the elastic member. The hose clamp device according to claim 1,
A hose clamp device, wherein the elastic member, the cover plate, and the spacer are further provided on the upper surface of the cover plate via the other plurality of hoses to clamp the other plurality of hoses. In the hose clamp device according to claim 1 or 2,
A hose clamp device, wherein a mounting bracket is provided at the one bent portion of the fixing plate. The hose clamp device according to claim 1,
The fixing plate is orthogonal to the first flat surface portion where a part of the outer peripheral surface of one of the plurality of hoses abuts and the disposition direction of the hose in the flat surface portion so as to go away from the one hose. A first fixing plate having a first bent portion provided at both ends;
A second flat surface provided integrally with the first fixing plate and in contact with a part of the outer peripheral surface of the other plurality of hoses; and the second flat surface extending in a direction away from the other hose. A second fixing plate having a second bent portion provided on both ends perpendicular to the hose arranging direction in the portion,
One of the first bent portions and one of the second bent portions are connected such that the first plane portion and the second plane portion face opposite sides, and the first and second The hose clamp device, wherein the elastic member for clamping each hose and the cover body are respectively fixed to the fixing plate by a bolt via a spacer. In the hose clamp device according to claim 4,
A hose clamp device, wherein a mounting bracket is integrally provided on a side portion of the cover plate corresponding to the other hose.

Images