JP2885027B2 - Aerial clamping device for rods - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aerial clamping device for a rod-shaped member, which is capable of connecting a plurality of rods disposed at an aerial position near a structure to each other to enhance mutual rigidity.
The present invention relates to an aerial clamp device for a rod-like body which is provided to face a narrow portion of a structure.

[0002]

2. Description of the Related Art When a pipe, a harness, a wire cable, or the like as a rod is provided near a structure, if the rod vibrates, it may come into contact with a nearby structure or other members. In some cases, it may be a cause of noise. Therefore, the rod is bolted to the structure side using a clamp member,
It has been practiced to enhance the rigidity of the rod-shaped body to prevent excessive vibration. By the way, when the position where the rod is to be clamped is relatively far away from the structure, that is, when the rod is in the air, the rigidity of a single rod can be increased by using a long clamping member. The clamp portion of the member and the fixing portion are connected. On the other hand, when a plurality of rods are arranged side by side in the aerial position, the plurality of rods can be connected to each other using a clamp member to enhance the rigidity as a whole. For example, Japanese Unexamined Utility Model Publication No. 3-46082 discloses a structure in which a pair of pipes is sandwiched by a clamp body divided into two parts, and both clamp bodies are integrally tightened by bolts to enhance the rigidity of the pair of pipes.

[0003]

By the way, in such an apparatus in which a plurality of rods such as pipes are sandwiched between a pair of clamps and bolts are fastened to both clamps, an operator is required to attach the pair of clamps during the mounting operation. It is necessary to grip the pair of pipes by hand, and then screw in a bolt from one side of the pair of rods to perform a tightening operation. As described above, when a plurality of rods such as pipes are integrally connected by a conventional clamp device, a predetermined work space is required around the clamp positions of the plurality of rods, and the operation time is relatively long. It was a matter of concern. In particular, when a predetermined working space cannot be secured around the clamping positions of the plurality of rods, the conventional clamping device cannot be used, which has been a problem. An object of the present invention is to provide an aerial clamping device for a rod-like body that can easily perform a fastening operation even when a work space between the structure and the rod-like body is relatively narrow.

[0004]

In order to achieve the above-mentioned object, the present invention relates to a method of forming a plurality of rods arranged along a structure and adjacent to each other on a structure side and a non-structure side of the rod. The plurality of rods are connected to each other using a clamp member including a pair of elastic portions covering from both sides of the pair, a pair of clamp portions respectively covering the same pair of elastic portions, and a fastening portion for fastening the same pair of clamp portions in the air. In the bar-shaped aerial clamp device, at least one of the clamp portions in a longitudinal direction of the rod-shaped body or a direction orthogonal to the longitudinal direction of one of the pair of clamp portions provided on the structure side. The bulge formed to protrude from the side and the one of the one clamps which are erected from the position corresponding to the aerial fastening position of the clamp member in the structure and include the bulge. A fixing member comprising a pair of holding portions that are temporarily held by being sandwiched from both sides of the opposite side portion, and a guide portion that positions the one clamp portion in a direction orthogonal to the holding portion; Is
A predetermined length that reaches the one clamp portion temporarily fixed to the fixing member through the other clamp portion covering the rod-shaped body from the opposite structure side of the pair of clamp portions, The pair of clamp portions are fastened in the air by pulling the one clamp portion temporarily fixed to the fixing member toward the other clamp portion.

[0005]

A pair of elastic portions covering a plurality of rod-shaped members from both sides of the rod-shaped structure on the structure side and the opposite structure side, and a fastening portion for fastening the same pair of clamp portions as a pair of clamp portions covering these members in the air. Prepare a clamp member consisting of, and formed a projecting portion protruding from at least one side of the clamp portion in the longitudinal direction or the direction orthogonal to the longitudinal direction of the rod-shaped body of one clamp portion provided on the structure side, A fixing member is provided upright from a position corresponding to the aerial fastening position of the clamp member in the structure, and the fixing member temporarily fixes one of the clamp portions including the bulging portion by sandwiching the clamp portion from both sides of the opposite side. A pair of holding portions, and a guide portion for positioning one of the clamping portions in a direction perpendicular to the holding portions, wherein the fastening portion is connected to the other of the pair of clamping portions from the opposite side of the structure. By having a predetermined length to penetrate through the clamp portion and reach one clamp portion, the fastening portion is tightened, whereby one clamp portion temporarily fixed to the fixing member on the structure side, The pair of clamps can be fastened in the air by pulling toward the other clamp, and the fastening operation of the fastening can be performed relatively easily even when the working space is relatively small.

[0006]

FIG. 1, FIG. 2 and FIG. 4 show the vicinity of an injection pump 2 of a diesel engine 1 equipped with a rod-shaped aerial clamping device as one embodiment of the present invention. Here, the diesel engine 1 is an in-line four-cylinder engine having a cylinder head 4 and a cylinder head cover 5 on a cylinder block 3, and a row-type injection pump 2 on one side of the cylinder block 3 integrally formed by a fixing member (not shown). Attachment, an inred manifold 6 is integrally attached to one side wall of the cylinder head 4 and an exhaust manifold (not shown) is integrally attached to the other side wall.

As shown in FIG. 2, the inred manifold 6 is provided with four branch pipes 9 communicating the intake port (not shown) of each cylinder and the surge tank 8 on the upstream side. Shielding plates 10 for closing these are provided in the gaps. Moreover, the downstream end of the branch pipe 9 is connected to a flange portion 11 overlapped with the cylinder head 4, and the upstream end is connected to an overlap portion 12 with the surge tank 8. In the inred manifold 6, the branch pipe 9, the shielding plate 10, the flange portion 11, and the overlapping portion 12 are integrally cast,
In particular, the inred manifold 6 also has a function as a sound insulating member that blocks noise that goes upward from below in plan view. In addition, through holes 13 and 14 are provided in the shield plate 10 that covers the gaps between the first and second branch pipes 9 and 9 and the third and fourth branch pipes 9 and 9 in the shield plate 10. Each of the injection pipes 7 described later can pass through.

The injection pump 2 is driven by the rotation of the engine by a pump rotation drive system (not shown), and the high-pressure fuel pumped by each pump chamber (not shown) is supplied to the fuel injection valve 8 of each cylinder via each injection pipe 7. The fuel is injected by the valve. The injection pump 2 is provided with four pump chambers (not shown), and each pump chamber and the combustion chamber of each cylinder are connected via each injection pipe 7. Of the injection pipes 7, the two injection pipes 7, 7 of the first and second cylinders pass through the through holes 13 of the inred manifold 6, and are connected to the two fuel injection valves 8 of the first and second cylinders. The two injection pipes 7, 7 of the fourth cylinder pass through the through holes 14 of the inred manifold 6, and are connected to the two fuel injection valves 8 of the third, fourth cylinder. Here, the two injection pipes 7, 7 extending from the first and second cylinders are curved as shown by a two-dot chain line in FIG.
Are supported together by a pipe coupler 15 and further curved to reach each fuel injection valve 8. The through hole 13 passes through both the injection pipes 7 and 7 and is closed by the sealing material 16. The pipe coupler 15 has a pair of injection pipes 7,7.
Is clamped by a pair of holding halves with elastic members, and the pair of holding halves are bolted together with the bracket 17 to form the bracket 1.
By fixing the other end of the injection pipe 7 to the cylinder head 4, the swing of the pair of injection pipes 7 is regulated.

On the other hand, the two injection pipes 7, 7 extending from the third and fourth cylinders are arranged along the lower wall surface of the inred manifold 6 and in close proximity to each other, and are held at the air holding position P (FIG.
3 is clamped by the rod-shaped aerial clamping device 18 of the present invention. Furthermore, both injection pipes 7,
7 passes through the through hole 14, and its extension is curved and reaches each fuel injection valve 8. In addition, the through hole 14 passes through both the injection pipes 7 and 7 and is closed by a sealing material (not shown). As shown in FIGS. 1, 3, and 5, the rod-shaped aerial clamp device 18 is integrally formed on a clamp member 19 for clamping the aerial clamping position P of both the injection pipes 7, 7 and a lower wall surface of the inred manifold 6. And both injection pipes 7, 7
And a fixing member 20 provided at a position away from the aerial holding position P by a predetermined amount.

Here, the clamp member 19 has the elastic portion 2 inside.
1 and a bolt 23 as a fastening portion for fastening the same pair of clamp portions. In addition, the bolt 23 is provided with a pair of clamp portions 22, 22.
One of which is temporarily fixed to a fixing member 28 described later through the other clamp portion 22 that covers the injection pipes 7 from the opposite side of the structure (the lower side separated from the lower wall surface of the inred manifold 6). Is formed so as to have a predetermined length reaching the clamp portion 22. The one clamp portion 22 on the lower wall side of the inred manifold 6 is integrated with the elastic portion 21 and in the longitudinal direction of the two injection pipes 7, 7.
(See FIG. 6) 21a
Is provided. A screw hole 221 into which the bolt 23 is screwed is formed at the center of one clamp portion on the lower wall surface side, and a hole 222 into which the bolt 23 is loosely fitted is formed at the center of the other clamp portion.
Is formed. On the other hand, the fixing member 20 extends below the lower wall surface of the inred manifold 6 (see FIG. 3), and also clamps the bulging portions 21a on both sides of the clamp portion 22 from both sides in a direction to clamp the bulging portions 21a. A pair of hold portions 601 temporarily fixed to the lower wall surface of the manifold 6 and one clamp portion 2 in a direction orthogonal to the hold portions 601
2 comprises a guide portion 602 for positioning. In addition,
As shown in FIG. 5, each intermediate wall of the pair of holding portions 601 and guide portions 602 is bent to form a low wall, and the low walls intersect with each other to form a receiving surface f of the cross-shaped clamp portion 22. Constitute.

The operation of clamping the two injection pipes 7, 7 near the lower wall of the inred manifold 6 at the air holding position P using the rod-shaped air clamp apparatus having the above-described configuration will be described. In this case, first, the operator inserts one clamp portion 22 into the space between the pair of hold portions 601 and the guide portion 602 on the lower wall surface of the inred manifold 6 with one hand. At this time, the bulging portion 2 is located between the pair of holding portions 601.
1a are opposed to each other, and the bulging portion 21a is pushed in while being elastically deformed. Further, the clamp portion 22 is brought into contact with the cross-shaped receiving surface f, and one end of the clamp portion 22 is brought into contact with the guide portion 602 to complete the positioning, and temporarily fixed (see the two-dot chain line in FIGS. 3 and 5). ).

Thereafter, the operator grips the other clamp portion 22 through which the bolt 23 penetrates with one hand, and
The bolt 23 is screwed into the screw hole 221 of the temporarily fixed one of the clamp portions 22 while the nozzle 1 is in contact with both the injection pipes 7 and 7 in the air. Then, when the worker proceeds with one hand with a predetermined tightening tool, as shown in FIG. 7, the one temporarily fixed clamp portion 22 is separated from the receiving surface f.
At this time, one clamp part 22 is
The rotation of the center of the screw hole 221 is restricted by the guide tube 1 and the guide portion 602, and descends to reach the air holding position P of the two injection tubes 7. In particular, here, the center of the screw hole 221 and the common center line of the pair of holding parts 601 have a deviation t, whereby the rotation of the clamp part 22 can be more reliably regulated. As described above, the two injection tubes 7 are connected to the pair of clamp portions 2.
2 and 22 securely hold the plate. As a result, the rigidity of the two injection tubes 7, 7 is mutually enhanced, the amount of run-out is sufficiently restricted even when the engine is driven, interference with other members is suppressed, and generation of abnormal noise is prevented.

In the above description, the bulging portion 21a of one of the pair of clamp portions 22, 22 is provided.
Is formed so as to extend from both sides of the clamp portion. However, in some cases, the bulge portion 21a may be formed to extend from only one side. Also, the bolt 23 of the other clamp portion
By forming the inner diameter of the elastic part 21 slightly smaller than the outer diameter of the bolt 23 with respect to the hole 222 for insertion, the vibration and the set during the subsequent conveyance even if the bolt 23 is attached to the other clamp part in advance. At the time of the attaching operation, the bolt 23 does not fall off, and the workability can be improved. Furthermore,
8 and 9 show a rod-shaped aerial clamp device 25 as another embodiment of the present invention. This rod-shaped aerial clamp device 25 includes many components similar to those of the device of FIG. 1, and the same members are denoted by the same reference numerals, and redundant description is omitted.

Here, the clamp member 26 has the elastic portion 2 inside.
1 and a pair of clamp portions 22, 22, and a bolt 23 as a fastening portion. One clamp portion 22 on the lower wall side of the inred manifold 6 is formed by projecting each bulge portion 27 from both outer ends of the clamp portion 22 in a direction orthogonal to the longitudinal direction of the injection pipes 7, 7. Here, each bulge 27
Is formed of an elastic material, and is adhered to both sides of one clamp portion 22.

On the other hand, the fixing member 28 extends below the lower wall surface of the inred manifold 6, and
2 and a pair of holding portions 601 ′ and 60, which are sandwiched from both sides in the direction of sandwiching the bulging portions 27 on both sides and temporarily fixed to the lower wall surface of the inred manifold 6.
Guide section 60 for positioning in a direction orthogonal to 1 '
2 '. As shown in FIG. 9, each intermediate wall of the pair of hold portions 601 ′ and guide portions 602 ′ is bent to form a low wall, and the low walls intersect with each other to form a cross-shaped clamp portion 22. The receiving surface f is configured.

Even with the rod-shaped aerial clamp device having such a configuration, the operator can hold the pair of holding portions 601 'and the guide portions 602' on the lower wall surface of the inred manifold 6 with one hand.
One clamp part 22 is inserted into the space between the two. At this time, the swelling portion 27 is opposed between the pair of holding portions 601 ', and the swelling portion 27 is pushed in while being elastically deformed, thereby clamping the clamp portion 22 without displacement. Further, the clamp portion 22 is brought into contact with the cross-shaped receiving surface f,
Positioning is completed with the side portion of the clamp portion 22 abutting on 02 ′, and temporarily fixed (see FIGS. 8 and 9). Thereafter, the operator holds the other clamp portion 22 through which the bolt 23 has been penetrated with one hand, and temporarily fixes the bolt 23 while bringing the elastic portion 21 into contact with the two jet pipes 7 in the air. Screwed into the screw hole 221 of the clamp portion 22, tightening with a tool, and pulling one clamp portion 22 temporarily fixed to the fixing member 28 to the other clamp portion 22 to fasten the pair of clamp portions in the air Then, the two injection tubes 7, 7 can be securely clamped and held by the pair of clamp portions 22, 22. As a result, the two injection tubes 7, 7
Are mutually strengthened, the amount of runout is sufficiently restricted even when the engine is driven, interference with other members is suppressed, and generation of abnormal noise can be prevented.

[0017]

As described above, according to the present invention, one clamp portion is temporarily fixed to a fixing member including a pair of hold portions and a guide portion, and the one clamp portion and the other clamp portion are fixed. By clamping with a fastening portion (bolt) with a rod-shaped body in between, the temporarily fixed one clamp portion is drawn from the temporarily fixed position and is fastened to the other clamp portion in the air, Work efficiency is improved, especially when it is not possible to secure a work space to place (insert) one clamp part around the fastening position of the rod in the air between the structure and the rod, and compare the fastening work with one hand It can be done easily.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an engine equipped with a rod-shaped aerial clamp device as one embodiment of the present invention.

2 is a schematic plan view of an engine equipped with the rod-shaped aerial clamping device of FIG. 1;

FIG. 3 is an enlarged sectional view taken along line XX in FIG. 2;

FIG. 4 is a partially cutaway front view of an engine equipped with the rod-shaped aerial clamping device of FIG. 1;

FIG. 5 is an exploded perspective view of the rod-shaped aerial clamp device of FIG. 1;

FIG. 6 is a bottom view of the rod-shaped aerial clamp device of FIG. 1;

FIG. 7 is a side view of the rod-shaped aerial clamp device of FIG. 1;

FIG. 8 is a bottom view of a rod-shaped aerial clamp device according to another embodiment of the present invention.

FIG. 9 is a side view of a bar-shaped aerial clamp device as another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Engine 7 Injection pipe 18 Clamp member 19 Aerial clamp device for rod-like body 20 Fixing member 21a Swelling portion 22 Clamp portion 23 Bolt 27 Swelling portion 601 Hold portion 602 Guide portion

Continued on the front page (56) References Japanese Utility Model Hei 1-77179 (JP, U) Japanese Utility Model Hei 2-102850 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F16L 3 / Ten

Claims (1)

(57) [Claims] 1. A pair of elastic portions that cover a plurality of rods arranged along a structure and adjacent to each other from both sides of a structure side and a non-structure side of the rods, and cover a same pair of elastic portions, respectively. A pair of clamp portions, and a bar-shaped aerial clamp device for connecting a plurality of bar-shaped members to each other by using a clamp member formed of a fastening portion for fastening the same pair of clamp portions in the air, wherein: A bulging portion formed so as to protrude from at least one side of the clamp portion in a longitudinal direction or a direction orthogonal to the longitudinal direction of the rod-shaped body of one of the clamp portions provided on the structure side; and the clamp in the structure A pair of holding portions that are erected from a position corresponding to the aerial fastening position of the member and that are temporarily held by being sandwiched from both sides of the one side of the one clamping portion including the bulging portion. A fixing member comprising a guide portion for positioning the one clamp portion in a direction orthogonal to the hold portion, wherein the fastening portion is formed from the opposite structure side of the pair of clamp portions. The one clamp portion, which has a predetermined length to reach the one clamp portion temporarily fixed to the fixing member through the other clamp portion covering the rod-shaped body, and the one clamp portion temporarily fixed to the fixing member, An aerial clamp device for a rod-shaped body, wherein the pair of clamp portions are fastened in the air by being pulled toward the other clamp portion.