Hand tamper

Abstract

To provide a hand tie tamper capable of efficiently performing the work of thrusting ballast (crushed stone).SOLUTION: A vibration-generating part 10 and a handle part 11 to be gripped by a worker are provided, a main beater 13 is fixed to one lateral side surface of a vibrating body 10b by a main beater fixing bracket 12, and a sub-beater 15 is detachably fixed to the other lateral side surface of the vibrating body 10b via a sub-beater fixing bracket 14, the sub-beater fixing bracket 14 has a beater mounting state changing bracket 14b for setting and fixing the sub-beater 15 in a working state or setting the sub-beater 15 in a flip-up state so as not to be used for work, and a beater fixing bracket body 14a for fixing the beater mounting state changing bracket 14b to the other lateral side face of the vibrating body 10b.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a hand tamping tool for a worker to grasp and compact the ballast (crushed stones) of a railway roadbed.

Background Art

[0002] In a railway ballast track, with daily train passages, the ballast (crushed stones) that makes up the ballast roadbed may collapse or shift, causing the track to sink and the sleeper to float from the ballast roadbed, i.e., the "floating sleeper phenomenon" may occur. If train operation continues in such a state, it will lead to further deterioration of the ballast roadbed. Therefore, generally, a repair operation is carried out to compact the ballast (crushed stones) of the roadbed using a tool called a tamping tool. Such a repair device is called a tamping tool, and there are a large multiple tamping tool that self-runs on the rail and compacts the crushed stones, and a small hand tamping tool that a worker grasps and operates, etc.

[0003] A hand tamping tool is composed of a vibration generating part that vibrates by an engine or a motor, a beater that is attached to the vibration generating part and vibrates, and an operation handle part arranged on the upper part of the vibration generating part, etc. The worker grasps the operation handle part, makes the beater vibrate by the vibration generating part while entering it into the ballast, and compacts the ballast (crushed stones) by the vibration of the beater.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the hand tampers described in the aforementioned Patent Documents 1 to 3 only have one beater attached, which sometimes made it difficult to efficiently compact ballast (crushed stone) when the track bed was still loose, for example, immediately after spreading new ballast (crushed stone).

[0006] In other words, when the track bed is still loose immediately after spreading new ballast (crushed stone), a preliminary compaction of the ballast (crushed stone), commonly called a "rough compaction," is performed before the main compaction work using a single beater. However, for rough compactions like this, a hand tamper with only one beater is inefficient, and it is more efficient to use multiple beaters to compact the new ballast (crushed stone).

[0007] Therefore, the present invention has been made with this in mind, and aims to provide a hand tamper that can efficiently compact ballast (crushed stone). [Means for solving the problem]

[0008] To solve the aforementioned problems, the hand tie tamper according to the present invention comprises a vibration generating unit that generates vibrations by an engine or motor, and a handle unit that is grasped by an operator, wherein the main beater is fixed to the vibration generating unit via a main beater fixing bracket, while a sub beater is detachably fixed to the vibration generating unit via a sub beater fixing bracket. The sub-beater fixing bracket has a beater mounting state changing bracket which includes a working state setting fixing part for setting and fixing the sub-beater in a working state, and a flipped-up state setting part for setting the tip of the sub-beater in a flipped-up state so that it is not used for work. It is characterized by the following: Furthermore, in the hand tie tamper according to the present invention, the sub beater has at least two beater-side pin holes that are parallel to the surface of the beater and extend laterally, spaced at predetermined intervals in the vertical direction, while the beater mounting state changing bracket has a pair of opposing beater mounting plate portions, the pair of beater mounting plate portions each having an upper mounting plate portion side pin hole and a lower mounting plate portion side pin hole, respectively, spaced at the same interval as the predetermined interval of the beater-side pin holes, and the sub beater set pin is passed through the upper mounting plate portion side pin hole and the lower mounting plate portion pin hole and the beater-side pin hole of the sub beater to set the sub beater to the working state, while the sub beater set pin is passed through the upper mounting plate portion side pin hole and the diagonally upper mounting plate portion pin hole and the beater-side pin hole of the sub beater to set the sub beater to the flipped-up state. Furthermore, in the hand tie tamper according to the present invention, bolt holes for passing sub-beater fixing bolts are provided between a plurality of beater-side pin holes of the sub-beater, while a bolt fixing portion is provided between the upper pin hole and the lower pin hole on the mounting plate side of the beater mounting state changing bracket, with a female thread portion that screws into the male thread portion of the sub-beater fixing bolt. The sub-beater is fixed to the beater mounting state changing bracket by aligning the plurality of beater-side pin holes with the upper pin hole and the lower pin hole on the mounting plate side and passing the sub-beater set pins through them, and aligning the female thread portion of the bolt holes in the beater mounting state changing bracket with the sub-beater fixing bolt and screwing the male thread portion of the sub-beater fixing bolt into the female thread portion. Furthermore, the hand tie tamper according to the present invention is also characterized in that the sub-beater fixing bracket further has a beater fixing bracket body that detachably fixes the beater mounting state changing bracket to the vibration generating part. [Effects of the Invention]

[0009] The hand tie tamper according to the present invention makes it possible to compact ballast (crushed stone) using two beaters, a main and a sub, or to compact ballast (crushed stone) using only the main beater, thus enabling efficient ballast compaction. [Brief explanation of the drawing]

[0010] [Figure 1] This is a front view showing a hand tie tamper according to an embodiment of the present invention, with a sub-beater attached. [Figure 2] This is a front view of a hand tie tamper according to an embodiment of the present invention, showing the sub-beater removed. [Figure 3] This is a left side view showing a hand tie tamper according to an embodiment of the present invention, with a sub-beater attached. [Figure 4] This is a plan view showing a hand tie tamper according to an embodiment of the present invention, with a sub-beater attached. [Figure 5] (a) to (c) are front view, side view, and top view of the main beater constituting the hand tie tamper according to the embodiment of the present invention. [Figure 6] (a) to (d) are front view, left side view, cross-sectional view along line AA, and bottom view of the beater mounting state changing bracket of the sub-beater fixing bracket, which constitutes the hand tie tamper according to the embodiment of the present invention. [Figure 7] (a) to (c) are left side view, front view, and top view of a sub-beater constituting a hand tie tamper according to an embodiment of the present invention. [Figure 8] This is a front view of a sub-beater set pin constituting a hand tie tamper according to an embodiment of the present invention. [Figure 9] (a) and (b) are front and left side views, respectively, of the beater fixing bolt constituting the hand tie tamper according to an embodiment of the present invention. [Figure 10]In the hand tamper according to an embodiment of the present invention, it is a front view showing a state in which the sub-beater is removed from the beater attachment state change bracket and the ramming work of the ballast (crushed stone) is performed only with the main beater. [Figure 11] In the beater attachment state change bracket of the hand tamper according to an embodiment of the present invention, it is a front view showing a state in which the sub-beater is set in a flipped-up state (standby state) and the ramming work of the ballast (crushed stone) is performed only with the main beater. [Figure 12] In the beater attachment state change bracket of the hand tamper according to an embodiment of the present invention, it is a front view showing a state in which the sub-beater is set in a use state and fixed, and the ramming work of the ballast (crushed stone) is performed using both the main beater and the sub-beater. [Figure 13] It is a front view showing a state in which the main beater and the beater attachment state change bracket are removed from the main beater fixing bracket and the sub-beater fixing bracket of the hand tamper according to an embodiment of the present invention, and double beaters are attached to each of them to set four beaters. [Figure 14] It is a side view showing a state in which the main beater and the beater attachment state change bracket are removed from the main beater fixing bracket and the sub-beater fixing bracket of the hand tamper according to an embodiment of the present invention, and double beaters are attached to each of them to set four beaters.

Mode for Carrying Out the Invention

[0011] Hereinafter, the hand tamper 1 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Note that the hand tamper 1 of the embodiment described below is merely an example of the present invention, and the present invention is not limited to the following embodiment and can be appropriately changed within the scope of the technical idea of the present invention.

[0012] <Configuration of the hand tamper 1 of the embodiment> As shown in FIGS. 1 to 7 and the like, the hand-held titanium paver 1 of the embodiment includes a vibration generating unit 10, a handle unit 11, a main beater fixing bracket 12, a main beater (hereinafter referred to as the main beater) 13, a sub-beater fixing bracket 14, a sub-beater (hereinafter referred to as the sub-beater) 15, a short bolt 16a and a nut 16b for bracket fixing, a long bolt 17a and a nut 17 for bracket fixing, a sub-beater set pin 18, a sub-beater fixing bolt 19, and the like.

[0013] (Vibration generating unit 10) The vibration generating unit 10 vibrates the main beater 13, the sub-beater 15, etc. by an engine 10a driven by gasoline or the like to generate vibration, and a vibration body 10b vibrated by the engine 10a. On one lateral surface of the vibration body 10b, the main beater 13 is fixed via the main beater fixing bracket 12. On the other lateral surface of the vibration body 10b facing the main beater 13, the sub-beater 15 is configured to be fixed in a working state or set in a jumping-up state via the sub-beater fixing bracket 14 having a beater attachment state changing bracket 14b.

[0014] Therefore, on the left and right sides of the upper part of the vibration body 10b, short bolt through portions 10b1 through which the short bolts 16a for bracket fixing penetrate are provided respectively. On the lower part of the vibration body 10b, a long bolt through portion 10b2 through which the long bolts 17a for bracket fixing penetrate is provided. The main beater 13 is fixed via the main beater fixing bracket 12 by the short bolts 16a and nuts 16b for bracket fixing, the long bolts 17a and nuts 17 for bracket fixing, etc., while the sub-beater 15 is fixed in a use state via the sub-beater fixing bracket 14.

[0015] (Handle unit 11) The handle unit 11 is a part that an operator grasps, and is provided so as to protrude above the engine 10a with respect to the vibration generating unit 10 via a vibration absorbing portion 11a such as rubber or a spring.

[0016] Since vibration occurs between the handle portion 11 and the vibrating body 10b, a vibration absorbing part 11a, such as rubber or a spring, is provided to minimize the transmission of vibration to the handle portion 11.

[0017] (Main beater mounting bracket 12) The main beater fixing bracket 12 is a bracket that presses and fixes the main beater 13 against one of the lateral surfaces of the vibrating body 10b, and has a back plate portion that sandwiches and fixes the beater-side fixing plate portion 13a of the main beater 13 between itself and one of the lateral surfaces of the vibrating body 10b, and a pair of side plate portions that bend 90 degrees and extend from both sides of the back plate portion.

[0018] The back plate portion of the main beater fixing bracket 12 is provided with bolt through holes, through which the short bracket fixing bolt 16a and the long bracket fixing bolt 17a pass, at the interval between the upper mounting hole 13a1 and the lower mounting hole 13a2 of the main beater 13, which will be described later.

[0019] Furthermore, the main beater fixing bracket 12 is the same as the beater fixing bracket body 14a of the sub beater fixing bracket 14, as will be described later.

[0020] (Main Beater 13) The main beater 13 is a beater that is directly fixed to the main beater fixing bracket 12 of the vibration generating unit 10 by bolts, nuts, etc., and as shown in Figures 5(a) to (c), it consists of a beater-side fixing plate portion 13a fixed to the main beater fixing bracket 12, an inclined plate portion 13b extending diagonally from the lower end of the beater-side fixing portion 13a, and a compaction plate portion 13c extending parallel to the beater-side fixing plate portion 13a from the lower end of the inclined plate portion 13b and compacting the ballast (crushed stone) that is inserted between the ballast (crushed stone).

[0021] The beater-side fixing plate portion 13a is provided with an upper mounting hole 13a1 into which the upper bolt 11b4 above the main beater fixing bracket 12 is inserted, and a lower mounting hole 13a2 into which the lower threaded bolt 11b2 passes through the lower threaded bolt through hole 11b11 of the lower threaded bolt through portion 11b1 below the main beater fixing bracket 12. The beater is fixed to the main beater fixing bracket 12 by the lower threaded bolt 11b2 and nut 11c2 and the upper bolt 11b4, etc.

[0022] (Sub-Vita mounting bracket 14) The sub-beater fixing bracket 14 consists of a beater fixing bracket body 14a having a back plate and a pair of side plates, similar to the main beater fixing bracket 12, and a beater mounting state changing bracket 14b for setting the sub-beater 15 in the working state and the flipped-up state.

[0023] The beater fixing bracket body 14a, like the main beater fixing bracket 12, consists of a back plate portion that sandwiches and fixes the sub-beater 15 between the other opposing lateral surfaces of the vibrating body 10b, and a pair of side plate portions that bend 90 degrees from both sides of the back plate portion. The back plate portion is provided with bolt through holes through which a short bolt 16a for bracket fixing and a long bolt 17a for bracket fixing pass, respectively.

[0024] The beater mounting state changing bracket 14b is a bracket that is detachably fixed to another side surface of the vibrating body 10b by the sub-beater fixing bracket 14, and sets the sub-beater 15 in the working state and the flipped-up state. As shown in Figures 6(a) to (c), it has a back plate portion 14b1 that is sandwiched and fixed between the other side surface of the vibrating body 10b and the sub-beater fixing bracket 14, a pair of beater mounting plate portions 14b2, 14b2 that are bent at 90 degrees from both sides of the back plate portion 14b1, a top plate portion 14b3 that is joined by welding or the like to the upper end of the back plate portion 14b1 and the upper ends of the pair of beater mounting plate portions 14b2, 14b2, and bolt fixing portion 14b4, etc.

[0025] The back plate portion 14b1 is provided with an upper mounting hole 14b11 into which a short bolt 16a for bracket fixing is inserted, similar to the beater-side fixing plate portion 13a of the main beater 13, and a lower mounting hole 14b12 below the sub-beater fixing bracket 14 into which a long bolt 17a for bracket fixing is inserted. The bracket is then fixed by the short bolt 16a, the long bolt 17a for bracket fixing, and a nut 17b, etc.

[0026] Each of the pair of beater mounting plate portions 14b2, 14b2 has an upper pin hole 14b21 and a lower pin hole 14b22 on the mounting plate side, which are spaced vertically at the same interval as the predetermined interval of the pin holes on the beater side, and an oblique upper pin hole 14b23 on the mounting plate side, which is located diagonally above the upper pin hole 14b21.

[0027] The bolt fixing portion 14b4 is provided between the upper pin hole 14b21 on the mounting plate side and the vertically lower pin hole 14b2 on the mounting plate side in the back plate portion 14b1 between the pair of beater mounting plate portions 14b2, 14b2, and is provided with a female threaded portion 14b41 into which the beater fixing bolt is screwed, and reinforcing plates 14b42, 14b42 are joined to both sides and provided on the back plate portion 14b1.

[0028] (SubVita 15) The sub-beater 15, like the main beater 13, is composed of a beater-side fixing plate portion 15a, an inclined plate portion 15b extending diagonally from the lower end of the beater-side fixing plate portion 15a, and a compaction plate portion 15c extending parallel to the beater-side fixing plate portion 15a from the lower end of the inclined plate portion 15b and used to compact the ballast (crushed stone) that is inserted between the ballast (crushed stone).

[0029] Furthermore, unlike the main beater 13, the beater-side fixing plate portion 15a of the sub-beater 15 has a beater-side first mounting portion 15a1 and a beater-side second mounting portion 15a2, which extend parallel to the back surface of the beater-side fixing plate portion 15a and face both the left and right sides of the beater-side fixing plate portion 15a, respectively, and are provided at the same interval as the mounting plate portion upper pin hole 14b21 and the mounting plate portion vertically downward pin hole 14b2.

[0030] Furthermore, the beater-side fixing plate portion 15a of the sub-beater 15 is provided with a beater-side fixing bolt through hole 15a3 between the beater-side first mounting portion 15a1 and the beater-side second mounting portion 15a2, through which the beater fixing bolt passes.

[0031] (Short bolt 16a and nut 16b for bracket fixing) The short bolts 16a for fixing the bracket are inserted into the short bolt penetrations 10b1 on both the left and right sides of the upper part of the vibrating body 10b, respectively. The nuts 16b fix the upper part of the main beater 13 via the main beater fixing bracket 12, while the nuts 16b fix the upper parts of the beater fixing bracket body 14a and the beater mounting state changing bracket 14b, which are the sub-beater fixing bracket 14.

[0032] (Long bolt 17a and nut 17b for bracket fixing) The long bolt 17a for fixing the bracket is inserted into the long bolt penetration portion 10b2 at the bottom of the vibrating body 10b, and the nut 17b fixes the lower part of the main beater 13 via the main beater fixing bracket 12, while fixing the lower parts of the beater fixing bracket body 14a and the beater mounting state changing bracket 14b, which are the sub-beater fixing bracket 14.

[0033] (Sub-beater set pin 18) As described later, the sub-beater set pin 18 is inserted into the beater-side first pin hole 15a11 and beater-side second pin hole 15a21 of the sub-beater 15, and into the mounting plate-side upper pin hole 14b21 and mounting plate-side lower pin hole 14b22 or mounting plate-side diagonally upper pin hole 14b23 of the pair of beater mounting plate portions 14b2, 14b2 of the beater mounting state changing bracket 14b, and is a pin for setting the sub-beater 15 to the beater mounting state changing bracket 14b in the use state or flipped-up state (standby state). As shown in Figure 8, the tip is provided with a biasing projection 18a, 18a that is biased outward by a spring (not shown) or the like to prevent it from coming loose, while the rear end is provided with a ring 18b.

[0034] (Sub-beater fixing bolt 19) The sub-beater fixing bolt 19 is a bolt used to fix the sub-beater 15 to the beater mounting state changing bracket 14b in use. As shown in Figures 9(a) and (b), a rod-shaped handle portion 19c is joined to the head 19b of the shaft portion 19a, which has a male threaded portion 19a1, by welding or the like, forming an overall T-shape.

[0035] <Operation of the hand tie tamper 1 in the embodiment> Next, the operation of the hand tie tamper 1 configured as described above will be explained.

[0036] (This refers to the "main tamping" operation, where the sub-beater 15 is removed and the ballast (crushed stone) B is compacted using only the main beater 13.)

[0037] In this case, as shown in Figure 10, the sub-beater 15 is removed from the beater mounting state changing bracket 14b, which is fixed to the opposite side of the vibrating body 10b via the beater fixing bracket body 14a, and the tamping work of the ballast (crushed stone) B is performed using only the main beater 13. In the figure, M represents a sleeper and R represents a rail.

[0038] In other words, the worker turns on the drive switch of the engine 10a at the vibration generating unit 10 to vibrate the vibrating body 10b, causing the beater fixing bracket body 14a and the beater mounting state changing bracket 14b, which constitute the main beater fixing bracket 12 and sub-beater fixing bracket 14 fixed to the side surface of the vibrating body 10b, to vibrate. However, since the sub-beater 15 has been removed from the beater mounting state changing bracket 14b and the main beater 13 is fixed to the main beater fixing bracket 12, only the compaction plate portion 13c at the tip of the main beater 13 is inserted into the gaps in the ballast (crushed stone) B to perform compaction.

[0039] (This applies to the "main tamping" operation, where the sub-beater 15 is set to the raised position (standby position) and the ballast (crushed stone) B is compacted using only the main beater 13.)

[0040] In this case, the sub-beater 15 is attached to the beater mounting state changing bracket 14b, which is fixed to the side surface opposite the vibrating body 10b via the beater fixing bracket body 14a. However, as shown in Figure 11, the sub-beater 15 is set to the flipped-up state (standby state) and the tamping work of the ballast (crushed stone) B is performed using only the main beater 13.

[0041] In other words, the sub-beater 15 aligns the beater-side first pin hole 15a11 (see Figures 7(a)~(c)) and beater-side second pin hole 15a21 (see Figures 7(a)~(c)) provided at predetermined intervals on the back side of the beater-side fixing plate portion 15a with the mounting plate portion upper pin hole 14b21 (see Figures 6(a)~(c)) and the mounting plate portion diagonally upper pin hole 14b23 (see Figures 6(a)~(c)) of the pair of beater mounting plate portions 14b2, 14b2 of the beater mounting state changing bracket 14b, respectively, and inserts the sub-beater set pin 18 (see Figure 8) to set the tamping plate portion 15c of the sub-beater 15 to a flipped-up state (standby state) where it flips diagonally upward, as shown in Figure 11.

[0042] In this case, the sub-beater 15 is in the raised position and will not be used for compacting the ballast (crushed stone) B, so the sub-beater 15 will not be fixed to the beater mounting state changing bracket 14b using the sub-beater fixing bolt 19.

[0043] Then, when the worker turns on the drive switch for the engine 10a at the vibration generating unit 10, the sub-beater 15 is mounted in a flipped-up position on the beater mounting state changing bracket 14b of the sub-beater fixing bracket 14, so the tamping work of the ballast (crushed stone) B can be performed using only the main beater 13, just as if the sub-beater 15 were not installed.

[0044] (In the case of "excessive compaction" work, where both the main beater 13 and the sub-beater 15 are used to efficiently compact the ballast (crushed stone) B.)

[0045] In this case, as shown in Figure 12, the sub-beater 15 is set to the use state on the beater mounting state changing bracket 14b, and the ballast (crushed stone) B is compacted efficiently using the two beaters 13 and 15, the main beater 13 and the sub-beater 15, in a "compact compaction" operation. In other words, when compacting the (crushed stone) B efficiently using two beaters 13 and 15, the number of beaters used is doubled, and the "compact compaction" operation of the ballast (crushed stone) B can be performed in half the manpower or half the working time, thus significantly improving work efficiency.

[0046] Specifically, the beater-side first mounting portion 15a1 and beater-side second mounting portion 15a2 of the beater-side first mounting portion 15a1 and beater-side second mounting portion 15a2, respectively, are provided at a predetermined distance apart on the back side of the beater-side fixing plate portion 15a of the sub-beater 15. These are then aligned with the mounting plate portion upper pin hole 14b21 and the mounting plate portion vertical lower pin hole 14b2 of the pair of beater mounting plate portions 14b2, 14b2 of the beater mounting state changing bracket 14b, respectively. Sub-beater set pins 18, 18 are then inserted, respectively, to set the sub-beater 15 to the use state so that the compaction plate portion 15c of the sub-beater 15 faces vertically downward, as shown in Figure 12.

[0047] Next, the sub-beater fixing bolt 19 is passed through the beater-side fixing bolt through hole 15a3 (see Figures 7(a) to (c)) in the beater-side fixing plate portion 15a of the sub-beater 15, and the male threaded portion 19a1 of its shaft portion 19a is screwed into the female threaded portion 14b41 (see Figures 6(a) to (c)) of the bolt fixing portion 14b4 to fix the sub-beater 15 in its operational state, i.e., in a vertical position facing the main beater 13.

[0048] In this case, since the sub-beater 15 is mounted in the working state on the beater mounting state changing bracket 14b of the sub-beater fixing bracket 14, when a worker drives the engine 10a with the vibration generating unit 10, the main beater fixing bracket 12 and the sub-beater fixing bracket 14 vibrate, allowing the two beaters, the main beater 13 and the sub-beater 15, to perform a "throttle tamping" operation to compact the ballast (crushed stone) B.

[0049] <Summary of the Hand Tamper 1 according to the present invention> As described above, the hand tie tamper 1 of the embodiment of the present invention comprises a vibration generating unit 10 that generates vibrations with an engine 10a and a handle unit 11 that is grasped by an operator. A main beater 13 is fixed to one side surface of the vibrating body 10b by a main beater fixing bracket 12, while a sub-beater 15 is detachably fixed to the other side surface of the vibrating body 10b by a sub-beater fixing bracket 14 so as to face the main beater 13.

[0050] Therefore, in the hand tamper 1 of this embodiment, for example, when the track bed is still loose, such as immediately after spreading new ballast (crushed stone), a "rough tamping" operation is performed by tamping the ballast (crushed stone) B with two beaters 13 and 15, the main and sub beaters. On the other hand, when performing a "main tamping" operation to compact the ballast (crushed stone) B under the sleepers M, it is possible to compact the ballast (crushed stone) B with only the main beater 13 without attaching the sub beater 15, thus enabling efficient compaction of the ballast (crushed stone) B. In particular, when the sub beater 15 is attached and the "rough tamping" operation is performed by tamping the ballast (crushed stone) B with two beaters 13 and 15, the number of beaters used is doubled, and the "rough tamping" operation of the ballast (crushed stone) B can be performed in half the manpower or half the working time, thus significantly improving work efficiency.

[0051] Furthermore, in the hand tie tamper 1 of the embodiment according to the present invention, the sub-beater fixing bracket 14 has a beater mounting state changing bracket 14b that fixes the sub-beater 15 in the working state and sets the sub-beater 15 in a flipped-up state so that it is not used for work.

[0052] Therefore, in the hand tie tamper 1 of the embodiment according to the present invention, the sub-beater 15 can be set to a flipped-up state by the beater mounting state changing bracket 14b of the sub-beater fixing bracket 14 without removing the sub-beater 15, and work can be performed using only the main beater 13. As a result, it becomes possible to quickly switch between "rough tamping" work, which involves tamping the ballast (crushed stone) B with the two beaters, the main and sub, and "full tamping" work, which involves compacting the ballast (crushed stone) B under the sleepers M, thereby improving ease of use and work efficiency.

[0053] Furthermore, in the hand tie tamper 1 of the embodiment of the present invention, the sub-beater 15 has at least two beater-side pin holes that are parallel to the surface of the beater and extend laterally, spaced at predetermined intervals in the vertical direction, while the beater mounting state changing bracket 14b has a pair of opposing beater mounting plate portions 14b2, 14b2, and each of the pair of beater mounting plate portions 14b2, 14b2 has an upper pin hole 14b21 and a lower pin hole 14b22 on the mounting plate side, which are spaced at the same predetermined interval as the beater-side pin holes in the vertical direction, and an upper pin on the mounting plate side A mounting plate side diagonal upper pin hole 14b23 is provided at a position diagonally above the mounting plate side lower pin hole 14b22 and hole 14b21. The sub-beater 15 is fixed in the working state using the mounting plate side upper pin hole 14b21 and the mounting plate side lower pin hole 14b22 as the working state set fixing part, while the sub-beater 15 is fixed in the flipped-up state using one of the mounting plate side upper pin hole 14b21 and lower pin hole 14b22 and the mounting plate side diagonal upper pin hole 14b23 as the flipped-up state set part.

[0054] Therefore, according to the hand tie tamper 1 of this embodiment, even if the sub-beater 15 is not removed, the sub-beater 15 can be easily set to a flipped-up state using the beater mounting state changing bracket 14b and the sub-beater set pin 18 so that it is not used for work, and work can be performed with only the main beater 13. In this respect, ease of use is improved and work efficiency can be improved.

[0055] Furthermore, in the hand tie tamper 1 of the embodiment according to the present invention, a beater-side fixing bolt through hole 15a3 is provided between the beater-side first mounting portion 15a1 and the beater-side second mounting portion 15a2 of the beater-side fixing plate portion 15a of the sub-beater 15, while a bolt fixing portion 14b4 is provided between the mounting plate portion side upper pin hole 14b21 and the mounting plate portion side lower pin hole 14b22 of the beater mounting state changing bracket 14b, with a female thread portion 14b41 that screws onto the male thread portion 19a1 of the shaft portion 19a of the sub-beater fixing bolt 19, and the sub-beater The sub-beater set pin 18 is passed through the beater mounting state changing bracket 14b by aligning the beater side first mounting portion 15a1 and beater side second mounting portion 15a2 with the upper pin hole 14b21 and lower pin hole 14b22 on the mounting plate side of the beater mounting state changing bracket 14b, and by aligning the beater side fixing bolt through hole 15a3 with the female thread portion 14b41 of the bolt fixing portion 14b4 of the beater mounting state changing bracket 14b, passing the sub-beater fixing bolt 19 through and screwing its male thread portion 19a1 into the female thread portion 14b41.

[0056] Therefore, according to the hand tie tamper 1 of the embodiment of the present invention, even without removing the sub-beater 15, the sub-beater 15 can be easily set to a flipped-up state so as not to be used for work by means of the beater mounting state changing bracket 14b, the sub-beater set pin 18, and the sub-beater fixing bolt 19, and can also be easily fixed to a state of use. In this respect, ease of use is improved and work efficiency can be improved.

[0057] Furthermore, in the hand tie tamper 1 of the embodiment according to the present invention, the beater mounting state changing bracket 14b is detachably attached to another side surface of the vibrating body 10b by a beater fixing bracket body 14a having the same shape as the main beater fixing bracket 12.

[0058] Therefore, not only can the beater mounting state changing bracket 14b be fixed to another side of the vibrating body 10b to fix the sub-beater 15 in use or set it in a flipped-up state (standby state), but the beater mounting state changing bracket 14b can also be removed and the sub-beater 15 fixed to another side of the vibrating body 10b with the beater fixing bracket body 14a to work with two beaters, or both the beater mounting state changing bracket 14b and the beater fixing bracket body 14a can be removed and work with only the main beater 13, thus improving usability and work efficiency.

[0059] In the description of the operation of the hand tie tamper 1 in the above embodiment, it was explained that when the roadbed is still loose immediately after spreading new ballast (crushed stone), a "rough tamping" operation is performed by tamping the ballast (crushed stone) B with two beaters, the main beater 13 and the sub-beater 15, and when performing a "main tamping" operation to compact the ballast (crushed stone) B under the sleepers M, the operation of compacting the ballast (crushed stone) B is performed with only one beater, the main beater 13. However, the present invention is not limited to such operation (use), and it is certainly possible to compact the ballast (crushed stone) B using two beaters, the main beater 13 and the sub-beater 15, or to compact the ballast (crushed stone) B using only one beater, the main beater 13, depending on the site conditions or state.

[0060] Furthermore, in the description of the hand tie tamper 1 of the above embodiment, the main beater 13 is fixed to one side surface of the vibrating body 10b by a main beater fixing bracket 12, while the sub-beater 15 is detachably fixed to the other side surface of the vibrating body 10b by a sub-beater fixing bracket 14 so as to face the main beater 13. However, the present invention is not limited to this, and the beater mounting state changing bracket 14b may also be fixed to one side surface of the vibrating body 10b by the main beater fixing bracket 12, so that the main beater 13 can be fixed in the use state or set in the flipped-up state (standby state) via the beater mounting state changing bracket 14b. Alternatively, the sub-beater 15 may be detachably fixed to the other side surface of the vibrating body 10b by a beater fixing bracket body 14a having the same shape as the main beater fixing bracket 12, without attaching the beater mounting state changing bracket 14b.

[0061] Furthermore, in the description of the hand tie tamper 1 of the above embodiment, the main beater 13 is fixed to the left and right sides of the vibrating body 10b by the main beater fixing bracket 12 and the sub beater fixing bracket 14, respectively, and the sub beater 15 is fixed in the use state or set in the flipped-up state (standby state). However, as shown in Figures 13 and 14, it is also possible to configure the system so that four beaters 20b can be vibrated simultaneously by driving a single engine 10a to compact the ballast (crushed stone) B, by fixing two beaters 20b, 20b to each of the double beater bases 20a, 20a assembled from steel materials with bolts or the like, and fixing these double beater units 20, 20 to the left and right sides of the vibrating body 10b with the main beater fixing bracket 12 and the beater fixing bracket body 14a of the sub beater fixing bracket 14, which has the same configuration as the main beater fixing bracket 12, respectively, and so that four beaters 20b can be vibrated simultaneously by driving a single engine 10a to compact the ballast (crushed stone) B.

[0062] Furthermore, in the description of the hand tie tamper 1 of the above embodiment, it was explained that the beater mounting plate portions 14b2, 14b2 of the beater mounting state changing bracket 14b of the sub-beater fixing bracket 14 are provided with an upper pin hole 14b21 on the mounting plate portion side, a lower pin hole 14b22 on the mounting plate portion side, and an oblique upper pin hole 14b23 on the mounting plate portion side, and that the sub-beater 15 is provided with a first pin hole 15a11 on the beater side and a second pin hole 15a21 on the beater side, and that the sub-beater set pin 18 is passed through these pin holes to set the sub-beater 15 in use or flipped up state. However, the present invention is not limited to this, and it is also possible to configure the sub-beater 15 to be rotatable around a sub-beater fixing bolt 19 that passes through a beater-side fixing bolt through hole 15a3, which is the center of the beater-side fixing plate portion 15a of the sub-beater 15, and to set the sub-beater 15 in use or flipped up state by rotation around the sub-beater fixing bolt 19.

[0063] Furthermore, in the description of the hand tie tamper 1 of the above embodiment, the vibration generating unit 10 was described as vibrating a vibrating body 10b with an engine 10a, setting the main beater 13 and sub-beater fixing bracket 14 fixed to the side of the vibrating body 10b by a main beater fixing bracket 12, and performing compaction work of ballast (crushed stone) B with a sub-beater 15 fixed by a sub-beater fixing bolt 19, etc. However, the present invention is not limited to this, and of course, the vibrating body 10b may be vibrated by a motor to vibrate the main beater 13 and sub-beater 15, and of course, the motor may be either a corded type that plugs into an outlet or a rechargeable battery type. [Explanation of symbols]

[0064] 1 Hand Tamper 10 Vibration generating section 10a engine 10b Vibrating body 10b1 Short bolt penetration 10b2 Long bolt penetration 11 Handle section 11a Vibration absorption section 12 Main Beater Mounting Bracket 12a Back plate part 12b Side plate part 13 Main Beater 13a Beater-side fixing part 13a1 Upper mounting hole 13a2 Lower mounting hole 13b Inclined plate part 13c Compaction plate section 14 Sub-beater mounting bracket 14a Beater fixing bracket body 14a1 Back plate part 14a2 Side plate part 14b Beater mounting status change bracket 14b1 Back plate part 14b11 Upper mounting hole 14b12 Lower mounting hole 14b2 Beater mounting plate section 14b21 Upper pin hole on the mounting plate side (working state set fixing part, flipped-up state set part) 14b22 Lower pin hole on the mounting plate side (working state set fixing part) 14b23 Pin hole diagonally upward on the mounting plate side (for the flipped-up position setting) 14b3 Top panel 14b4 Bolt fixing part (working state set fixing part) 14b41 Female thread section 14b42 Reinforcement plate 15 Sub-Vita 15a Beater-side fixing plate section 15a1 Beater side first mounting part 15a11 Beater side first pin hole 15a2 Beater side second mounting part 15a21 Beater side second pin hole 15a3 Beater-side fixing bolt through hole 15b Inclined plate part 15c Compaction plate section 16a Short bolt for bracket fixing 16b Nut 17a Long bolt for bracket fixing 17b Nut 18 Sub-beater set pins 18a Retaining projection 18b Ring 19 Sub-beater fixing bolts 19a1 Male threaded section 19b Head 19c handle section 20 Double Beater Unit 20a Double Beater Base 20b Beater B. Ballast (crushed stone) M Railway Sleeper R Rail

Claims

1. The device comprises a vibration generating unit that generates vibrations using an engine or motor, and a handle unit that is grasped by the operator. The main beater is fixed to the vibration generating unit via a main beater fixing bracket, while a sub-beater is detachably fixed to the vibration generating unit via a sub-beater fixing bracket. The aforementioned sub-beater fixing bracket is A hand tie tamper characterized by having a beater mounting state changing bracket that includes a work state setting and fixing part for setting and fixing the sub-beater in a working state, and a flipped-up state setting part for setting the tip of the sub-beater in a flipped-up state so that it is not used for work.

2. In the hand tie tamper according to claim 1, The aforementioned sub-beater has at least two beater-side pin holes that are parallel to the surface of the beater and extend laterally, spaced at predetermined intervals in the vertical direction, The aforementioned beater mounting state changing bracket has a pair of opposing beater mounting plate portions, Each pair of beater mounting plates has an upper pin hole and a lower pin hole on the mounting plate side, which are provided at the same intervals as the predetermined intervals between the pin holes on the beater side, and an upper pin hole on the mounting plate side, which is provided at a position diagonally above the upper pin hole on the mounting plate side. A hand tie tamper characterized in that, as the working state set fixing part, the sub-beater set pin is passed through the upper pin hole on the mounting plate side, the lower pin hole on the mounting plate side, and the pin hole on the beater side of the sub-beater to set the sub-beater in the working state, while as the flipped-up state set part, the sub-beater set pin is passed through the upper pin hole on the mounting plate side, the diagonally upper pin hole on the mounting plate side, and the pin hole on the beater side of the sub-beater to set the sub-beater in the flipped-up state.

3. In the hand tie tamper according to claim 2, Between the multiple pin holes on the beater side of the sub-beater, bolt holes are provided for passing sub-beater fixing bolts, Between the upper pin hole on the mounting plate side and the lower pin hole on the mounting plate side of the beater mounting state changing bracket, a bolt fixing portion is provided, which has a female threaded portion that screws into the male threaded portion of the sub-beater fixing bolt. The sub-beater is fixed to the beater mounting state changing bracket by aligning the sub-beater set pins with the upper pin holes and lower pin holes on the mounting plate side of the sub-beater side, aligning the sub-beater fixing bolts with the female threaded portion of the bolt holes in the beater mounting state changing bracket, and screwing the male threaded portion of the bolts into the female threaded portion.

4. A hand tie tamper according to any one of claims 1 to 3, The aforementioned sub-beater fixing bracket further includes, A hand tie tamper characterized by having a beater fixing bracket body that detachably fixes the beater mounting state changing bracket to the vibration generating part.

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