JP3128508U - Seat plate of a fastening device for a suspension hand and a suspension hand provided with the seat plate - Google Patents

Abstract

On the manufacturing side, the screw holes of both the locking nuts 12 and 13 and the female screw plate 11 due to slight contraction between the time immediately after injection molding of the synthetic resin material and the temperature of the outer shape material is lowered to room temperature. This plate eliminates the positional deviation of the plate, and on the use side, this plate that eliminates turning off in the direction of loosening due to long-term use, and provides a good feeling even when the passenger holds the suspended leather by hand, and this contact To provide a suspension hand equipped with a board.
A seat plate that constitutes a part of a tightening device for a suspension is protruded from a metal female screw plate provided with two screw holes into which a tightening screw is screwed and each screw hole of the member. Synthetic resin having a generally rectangular or elliptical shape with a large thickness in a state in which it is overlapped with a synthetic resin loosening prevention member provided with two screw holes for forcibly screwing the tip of the tightened screw. It was covered and fixed with an outer material made of metal.
[Selection] Figure 8

Description

  The present invention is designed to fold both ends of a suspension belt into a loop when attaching a suspension in a vehicle such as a train or bus so that each end of the suspension belt and a middle portion of the suspension belt are connected. The present invention relates to a seat plate which is one part of a tightening device for a suspension hand that sandwiches and fixes a portion overlapped on three layers, and a suspension hand provided with the seat plate.

  Lifters are for holding by hand to prevent the vehicle from shaking and becoming unstable when a passenger riding a vehicle such as a train or bus is standing. It is hung from a horizontal pipe fixed along the side, and when attaching a suspension hand to this horizontal pipe, both ends of the suspension belt are folded to form a loop up and down, and the upper loop is hung on the horizontal pipe Thread the lower loop through the hand held by the passenger. Then, the folded end portions of the suspension belt and the middle portion of the suspension belt are superposed in three layers, and are clamped and fixed by a suspension tightening device.

  With respect to a fastening device for a suspension hand, for example, a fastening device for a suspension strap for a transportation vehicle described in Japanese Utility Model Registration No. 3086567 (Patent Document 1) is known. As shown in FIGS. 2 and 3 of this publication, the fastening device is configured by fixing the heads of two fastening screws 5 and 5 in a synthetic resin base portion 6 having a rectangular shape and fastening screws 5. , 5 planted in parallel to the base 6, a fastening screw planting plate 2, a seat plate 3 provided with mounting holes 7 a, 7 b G of the fastening screws 5, 5, two nuts 4, 4, FIG. 1 and FIG. 2 of the same publication show a mounting method of the suspension bracket 1.

On the other hand, the applicant has manufactured a suspension hand provided with the suspension fastening device 4A shown in FIG.
The suspension fastening device 4A includes two fastening screws 6 and 7 and a seat plate 9A provided with mounting holes 8a and 8b through which shaft portions of the fastening screws 6 and 7 are passed.
14A and 14B, the seat plate 9A is a metal female screw plate provided with two screw holes 11a and 11b into which two tightening screws 6 and 7 are screwed. 11 and synthetic resin-made locking nuts 12 and 13 for forcibly screwing the end portions of the respective fastening screws 6 and 7 to prevent the fastening screws 6 and 7 from being loosened, are synthetic resins having a circular shape. It is covered with and integrated with the made outer material 10.

Thus, when the metal female screw plate 11 having the screw holes 11a and 11b provided in the seat plate 9A is disposed, the tightening screws 6 and 7 can be securely and firmly screwed into the seat plate 9A. it can.
Then, loosening nuts 12 and 13 are arranged on the outlet side of the screw holes 11a and 11b of the female screw plate 11, and the ends of the tightening screws 6 and 7 protruded from the screw holes 11a and 11b of the female screw plate 11 are provided. When the portion is further pushed forward, the distal ends of the tightening screws 6 and 7 can be screwed into the screw holes 12a and 12b of the locking nuts 13 and 14 member 12 while being pushed and expanded. Thereby, the tightening screws 6 and 7 are prevented from loosening. In order to make this possible, the screw holes 12 a and 12 b of the locking member 12 are slightly smaller in diameter than the screw diameters of the tightening screws 66 and 7.

As shown in FIG. 15, the seat plate 9 </ b> A is manufactured using a mold device 50, and protrudes forward from the front surface of the male mold 51 of the mold device 50 during the manufacture. In a state where the female screw plate 11 and the locking nuts 13 and 14 are fitted and supported on the support shafts 53 and 54 and aligned, the male mold 51 is moved forward to form the front surface of the female mold 52. When the synthetic resin for the outer material melted at a high temperature is injected into the mold around the female screw plate 11 and the locking member 12 arranged in the resin injection mold 55, the female screw plate 11 and the locking member A structure in which the periphery of 12 is covered with the outer material 10 is completed.
FIG. 1, FIG. 2, FIG. 3 of Utility Model Registration No. 3086567

  However, since the fastening device for a suspension described in Patent Document 1 is exposed in a state in which the nut protrudes when the device is attached to the belt for the suspension, measures for preventing the nut from being loosened are taken. Therefore, there is a possibility that the nut will turn in the direction that the tightening will loosen due to long-term use and fall off. Further, when the passenger holds the suspension hand by hand, the feel when the nut touches the hand is not good. Also, the nut may be loosened by mischief.

  On the other hand, if the front ends of the fastening screws 6 and 7 are fastened with the seat plate 9A shown in FIGS. 14 (a) and 14 (b) instead of the nut, the seat plate 9A can be remarkably suppressed from loosening and falling off, and has a good appearance. Although there is no sharp feeling even if the passenger touches the hand, the seat plate 9A has two locking nuts 12 and 13 inside the outer shape material 10. Therefore, in manufacturing the seat plate 9A, Immediately after injection molding the synthetic resin material that becomes the material 10 and until the temperature of the outer shape material decreases to room temperature, the outer shape material 10 slightly shrinks, so that the locking nuts 12 and 13 are attached to the temporary screw 11. A defective seat plate 9A which is displaced from the positions of the screw holes 11a and 11b is completed.

  An object of the present invention is to provide a seat plate of a fastening device for a suspension hand and a suspension hand provided with the seat plate, which solve these problems.

The seat plate of the tightening device for a suspension hand according to the present invention folds both ends of the suspension belt in a loop shape and suspends it from the both ends of the suspension belt when mounting the suspension hand in a vehicle such as a train or a bus. Two clamping screws for fixing the middle part of the hand strap in the three layers and fixing them, a pedestal provided with an insertion hole for the shaft of each clamping screw, and each clamping screw And a seat plate of a tightening device for a suspension hand provided with a seat plate provided with a screw hole for screwing the distal end portion thereof,
The seat plate is a metal female screw plate provided with two screw holes into which a tightening screw is screwed, and two screws for forcibly screwing the tip ends of the tightening screws protruding from the respective screw holes of the member. And a synthetic resin loosening-preventing member provided with a screw hole are covered and fixed with a synthetic resin outer material having a substantially rectangular or elliptical thickness.

  The tightening device for the suspension hand is a device for fixing the portion overlapped with the three layers of the suspension belt portion by sandwiching it between the pedestal and the seat plate using two fastening screws from both sides thereof. At this time, the two tightening screws are in the state of being inserted into the tightening bolt insertion holes opened at two places superimposed on the three layers of the strap for the suspension, and tightening of each tightening screw is This is performed between the front end of each tightening screw and a seat plate provided with two screw holes into which the front end of each tightening screw is screwed. A seat plate (hereinafter abbreviated as a seat plate) of the tightening device according to the present invention refers to this seat plate.

The outer surface of the seat plate of the present invention is formed of a synthetic resin outer material, and a metal female screw plate provided with two screw holes and two screw holes are provided therein. The formed synthetic resin loosening prevention members are arranged so as to overlap each other and to align the positions of both screw holes.
The two screw holes provided in the female screw plate correspond to substantial screw holes of the seat plate of the present invention, and the tip portions of the two tightening screws are screwed and fastened. The two screw holes provided in the locking member forcibly prevent the tightening screws from being loosened by forcibly inserting the tip ends of the two tightening screws protruding from the screw holes of the female screw plate. For this reason, the diameter of the two screw holes provided in the locking member is slightly smaller than the diameter of the screw shaft of the tightening screw. For this reason, when the tightening screw is forcibly screwed into the screw hole of the locking member, the screw hole of the locking member is further expanded so as to cut the tap, thereby preventing the locking screw from loosening. The reason why the locking member is made of synthetic resin is to enable this.

  Tightening is performed by inserting a tightening screw through two places of the three parts of the strap for the suspension, and the part of the three parts of the strap for the suspension is firmly fixed. In addition to the purpose, there is also a purpose to prevent the seat plate from rotating in the loosening direction.

  More importantly, the reason why the two screw holes are formed in the locking member is that in the manufacture of the seat plate, a synthetic resin melted at a high temperature is injected into the mold of the mold apparatus, Even if the outer shape material shrinks slightly after the outer shape material is formed around the loosening prevention member until the temperature of the outer shape material drops to room temperature, the distance between the two screw holes of the loosening prevention member and the looseness prevention member This is so as not to affect the position.

  The thickness of the seat plate of the present invention is inevitably thick due to the arrangement of the base and the locking member inside the outer material, but it is especially provided at the locking part. This is because in order to increase the length of the two screw holes, it is necessary to secure the front-rear length (front-rear height) of these peripheral portions. In this way, the locking function of the tightening screw by the locking member acts strongly, and the tip of the tightening screw does not have to protrude outside the seat plate.

  Furthermore, in the present invention, the outer material and the locking member may be a seat plate formed of synthetic resin.

  Since the synthetic resin has some flexibility and randomness as a raw material, if the outer material and the locking member are made of synthetic resin, no crack is generated even when external pressure, particularly external pressure due to tightening, is applied. Further, when the outer shape material is molded at a high temperature, the outer shape material and the loosening prevention member are integrated by welding, so that a good-looking and durable seat plate is obtained.

  Furthermore, in the present invention, the loosening prevention member is provided with two synthetic resin nuts or two synthetic resin cylinder members having a diameter slightly smaller than the diameter of the screw shaft of the tightening screw provided in parallel at a predetermined interval. The seat plate may be formed integrally with the spacer portion.

  The reason why the locking member has such a shape is that the locking plate is made of a lesser material and has a large locking function, and the seat plate has a large space by reducing the thickness and width of the spacer part. This is to give a margin for finishing the design.

  The present invention also proposes a suspension hand comprising a seat plate having any one of the above configurations.

  As described above, in the present invention, the scope of rights of the present invention also extends to the suspension hand equipped with the seat plate, which is made only of the seat plate.

  The effect on the manufacturing surface of the seat plate of the present invention is that, after forming the outer material around the female screw plate and the locking member, even if the outer material shrinks slightly until the temperature of the outer material decreases to room temperature, It is possible to obtain an effect that the interval between the two screw holes of the locking member and the position of the locking member are no longer affected.

  And the effect in the use surface of the seat board of this invention can mention the effect that the locking | screw prevention of the fastening screw is aimed at by the locking member being arrange | positioned in the inside. Moreover, the effect of preventing the seat plate from rotating by providing two screw holes in the seat plate and attaching the two tightening screws, that is, drastically restraining the seat plate from becoming loose or falling off itself. The effect of being able to do is not overlooked.

  In addition, the seat plate of the present invention has an effect of improving the appearance, soft feeling when touching the hand, and improving safety by forming the outer shape of the outer plate with a synthetic resin outer material.

  And, in the seat plate of the present invention, if the outer shape material and the locking member are made of synthetic resin resin, cracks will not occur even if external pressure, particularly external pressure due to tightening is applied, and when the outer shape material is molded at a high temperature, The outer material and the locking member are integrated by welding, and the effect is that the appearance is good and the seat plate is made strong.

  Then, the loosening prevention member in the seat plate of the present invention is provided in parallel with two synthetic resin nuts or two synthetic resin cylinder members having a slightly smaller diameter than the diameter of the screw shaft of the tightening screw with a predetermined interval. If it is formed integrally with the spacer part for the purpose, the effect of making it a loosening prevention member that works strongly with less material is produced, and the whole seat plate is designed with a space by suppressing the wall thickness and width of the spacer part. The effect which can give the margin which finishes also arises.

  The best mode for carrying out the present invention is a seat plate and a hanging hand disclosed in the column of the following embodiment.

Hereinafter, the seat plate of the fastening device for a suspension hand and the suspension hand according to the embodiment of the present invention will be described in detail with reference to the attached drawings, and finally the manufacturing process of the seat plate will be described.
FIG. 1 is a perspective view showing a suspension hand equipped with the seat plate of the present invention, FIG. 2 is a front view similarly including a cross-sectional portion in a part thereof, and FIG. 3 is a perspective view showing a stage in the middle of attachment of the suspension hand ing.
The suspension 1 shown in FIG. 1 to FIG. 3 includes a suspension band 2 and a handhold 3 to which a standing passenger who rides on a vehicle such as a train or bus attaches his / her hand to stabilize his / her posture. Fastening device for the suspension band 2 for fixing the both ends 2a, 2b of the suspension band portion 2 folded in a loop and the middle portion 2c of the suspension band portion 2 by sandwiching and fixing the three layers. (Hereinafter abbreviated as a tightening device) 4 is assembled, and at the time of this assembly, the suspender 1 is suspended from a horizontal pipe 20 fixed along a net shelf in the vehicle.

  The suspension 1 is attached by passing a loop 2A formed by folding back one end 2a of the suspension band 2 through a horizontal pipe 20 provided in the vehicle, and the other end of the suspension band 2. Loop 2B formed by folding back part 2b is passed through handle 3, and then both ends 2a, 2b of suspension band 2 and intermediate part 2c of suspension band 2 are overlapped in three layers. This is done by clamping and fixing the part using the fastening device 4.

  The fastening device 4 includes two fastening screws 6, 7, a base 8 provided with insertion holes 8 a, 8 b for inserting the shaft portions of the fastening screws 6, 7, and the fastening screws 6, 7. And a seat plate 9 provided with screw holes 9a and 9b for screwing the tip portions.

  The pedestal 8 shown in the present embodiment is a synthetic resin-resin molded product having an elliptical flat plate shape with a relatively thick wall and provided with insertion holes 8a and 8b for the fastening screws 6 and 7 on the upper and lower surfaces. The pedestal 8 is used for sandwiching and fixing a portion overlapped with the three layers of the suspension band 2 together with the seat plate 9.

  Then, two clamping screws 6 and 7 are used by clamping between the base 8 and the seat plate 9. For this reason, insertion holes 2d and 2f for the tightening screws 6 and 7 are formed in a portion of the suspension band 2 overlapped with the three layers.

  4A is a front view showing the seat plate 9 of the embodiment of the present invention, FIG. 4B is a side view thereof, FIG. 4C is a bottom view thereof, and FIG. 4D is an enlarged side sectional view thereof. FIG. 5A is a front view thereof, FIG. 5B is an enlarged side sectional view thereof, and FIG. 6A is a perspective view showing a locking member 12. FIG. 6B is a front view thereof, and FIG. 6C is an enlarged side sectional view thereof.

  The seat plate 9 shown in FIGS. 4A, 4B, 4C, and 4D has an elliptical shape with a large thickness, and the back surface is formed as a flat surface. The outer shape of the seat plate 9 is formed by the outer shape material 10 made of a synthetic resin resin. The outer shape of the seat plate 9 is formed on the surface side of the metal female screw plate 11 shown in FIGS. 4 and 5. These are arranged in a state where the synthetic resin-made locking members 12 shown in FIG.

  The female screw plate 11 is provided with screw holes 11a and 11b at the upper and lower portions of a flat and elliptical metal plate having a large thickness, and two holes 11c are formed between the screw holes 11a and 11b. 11c are parts made by press working and tapping, provided at intervals. The screw holes 12a and 12b are for screwing the tip ends of the tightening screws 5 and 7, and the holes 11c and 11c are made to be easy to bite the synthetic resin forming the outer material 10, so that the female screw plate 11 and the outer material 10 are firmly fixed.

  The locking member 12 is provided with screw holes 12a and 12b at the upper and lower portions thereof, the periphery of each screw hole 12a and 12b is formed by seated cylindrical portions 12c and 12d, and the centers of the screw holes 12a and 12b are formed. The cylindrical portions 12c and 12d are integrally formed with the spacer portion 12e so as to be aligned with the centers of the screw holes 11a and 11b of the female screw plate 11, and as shown in FIG. Synthetic resin made by injection molding in which constricted portions 12f and 12g are formed integrally to make it easy to bite the synthetic resin forming the material 10 and firmly fix the loosening prevention member 12 and the outer shape material 10. This is a molded product.

FIG. 7 is an enlarged side sectional view showing the upper end portion of the seat plate locking member 12 shown in FIG.
As shown in FIGS. 4D and 7, the diameter D1 of the screw hole 12a provided in the locking member 12 is slightly smaller than the diameter D2 of the screw hole 11a provided in the female screw plate 11. The screw hole 11a provided in the female screw plate 11 has a screw diameter D3 into which the tip of the tightening screw 6 is screwed.

  FIG. 8 is an enlarged side cross-sectional view showing a state in which a portion overlapped with the three layers of the strap part 2 for the suspension is sandwiched and fixed using the tightening screw 6, the base 8, the seat plate 9, and the tightening screw. As shown in this figure, the tip of the tightening screw 6 inserted from the base 8 side toward the seat plate 9 is screwed into a screw hole 11a provided with a female screw plate 11 in the seat plate. Then, when the tightening screw 6 is firmly tightened, the base 8 and the seat plate 9 are strongly sandwiched. In addition to this clamping, the clamping screw 6 is inserted into the portion of the three layers of the strap 2 for the suspension, and this clamping is ensured, and the clamping position may be shifted. Absent.

As the tightening screw 6 is operated in the tightening direction, the tip end portion projects forward from the screw hole 11 a of the female screw plate 11 in the seat plate 9. The tightening member 9 is provided for screwing the protruding tip portion of the tightening screw 6 to prevent its loosening. For this reason, the screw hole 12a of the locking member 12 is larger than the diameter of the tip portion of the tightening screw 6. Is also formed with a slightly smaller diameter. In this way, the tip of the tightening screw 6 enters the screw hole 12a by further expanding the screw hole 12a of the locking member 12 while cutting the tap. The pressure by the locking member 12 is applied to the surroundings, whereby the locking screw 6 is locked. The reason why the loosening prevention member 12 is made of synthetic resin is that the synthetic resin itself has a slight elasticity, so that the loosening prevention is ensured and the loosening prevention member 12 is cracked when the tightening screw 6 is screwed. It is preventing from entering.
Although not shown in FIG. 8, as shown in FIGS. 2 and 3, the fixing by the same tightening is also performed at the lower part of the portion of the suspension band 2 overlapped with the three layers.

9 to 12 are diagrams illustrating the manufacturing process of the seat plate 9 in order, and the injection mold apparatus 50 is used for manufacturing the seat plate 9.
As shown in FIG. 9, a resin injection mold 55 corresponding to the outer shape of the seat plate is formed on the front surface of the female mold 52 of the mold device 50, and the female screw plate 11 is formed on the front surface of the male mold 51. The support shafts 53 and 54 for positioning and supporting the locking member 12 are projected forward. FIG. 10 shows this in an easy-to-understand manner. As shown in FIG. 10, the upper and lower support shafts 53 and 54 have thick base portions 53b and 54b and front shaft portions formed in small diameter portions 53a and 54a. The diameters of the bases 53b and 54b are such that the bases 53b and 54b can be inserted into the screw holes 11a and 11b of the female screw plate 11 and the lengths of the bases 53b and 54b are female screws. This substantially corresponds to the thickness of the plate 11. The diameters of the small diameter portions 53a and 54a are such that the small diameter portions 53a and 54a can be inserted just into the screw holes 12a and 12b of the locking member 12.

  When the seat plate is manufactured, the female screw plate 11 is inserted into and supported by the base portions 53b and 54b, and then the locking member 12 is inserted into and supported by the small diameter portions 53a and 54a.

FIG. 11 shows a state in which the female screw plate 11 and the locking member 12 are supported by the support shafts 53 and 54 of the male mold 51. As can be seen in this figure, the female screw plate 11 and the locking member 12 are shown. Can overlap each other and be supported by the support shafts 53 and 54.
In this state, the male mold 51 is moved forward, and the male mold 51 and the female mold 52 are overlapped. In this manner, the locking member 12 and the female screw plate 11 are positioned together with the support shafts 53 and 54 in the resin injection mold 55 formed in the female mold 52.

  Then, in this state, as shown in FIG. 12, a high temperature melted synthetic resin is injected under pressure into the resin injection mold 55. After this injection, when the male mold 51 is returned to its original rear position, the seat plate in which the periphery of the female screw plate 11 and the locking member 12 is covered with the outer material 10 made of synthetic resin is placed in the resin injection mold 55. 9 remains, and is removed from the resin injection mold 55, and the resin portion unnecessary for surroundings is cut away, and the seat plate 9 shown in FIG. 4 is completed.

  The seat plate 9 thus completed is slightly contracted in shape due to the temperature decrease until the outer shape material 10 is lowered to room temperature, but the screw holes 11a and 11b of the female screw plate 11 are slightly shrunk. Since there is no change in the interval and the interval between the screw holes 12a and 12b of the locking member 12, there is no displacement between the screw holes 11a, 12a, 11b and 12b.

It is the perspective view which showed the suspension hand with which the seat plate of the Example of this invention was comprised. It is a front view which similarly includes a cross-sectional part in a part. It is the perspective view which showed the step in the middle of attachment of a suspender. (A) is the front view which showed the seat board of this invention embodiment, (b) is the side view, (c) is the bottom view, (d) is the expanded side sectional drawing. (A) is the perspective view which showed the internal thread board arrange | positioned inside the seat board, (b) is the front view, (c) is the expanded side sectional drawing. (A) is the perspective view which showed the locking member, (b) is the front view, (c) is the expanded side sectional drawing. It is side surface sectional drawing which expanded and showed the upper end part of the seat board loosening prevention member with the front-end | tip part of a clamping screw. It is the expanded side sectional view which showed the state which pinched | interposed and fixed the part piled up on three layers of the belt part for a suspension using a fastening screw, a base, and a seat board. It is side surface sectional drawing of the metal mold | die apparatus explaining the manufacturing process of the seat board. It is the perspective view which showed the part similarly. It is side surface sectional drawing of the metal mold | die apparatus explaining the manufacturing process of the seat board. It is side surface sectional drawing of the metal mold | die apparatus explaining the manufacturing process of the seat board. FIG. 6 is a perspective view showing a state before assembling a suspension hand equipped with a conventional suspension hand tightening device. (A) is the front view which showed the seat plate of the prior art, (b) is the sectional side view. It is side surface sectional drawing of the metal mold | die apparatus which showed the first step of the manufacturing process of the prior art seat board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Suspension hand 2 (For suspension hand) Band part 2a End part 2b End part 2c Middle part 2A Loop 2B Loop 3 Handle 4 Tightening device 6 Tightening screw 7 Each tightening screw 8 Base 8a, 8b Insertion hole 9 Seat plate 9a Screw hole DESCRIPTION OF SYMBOLS 10 Outer material 11 Female screw board 11a, 11b Screw hole 12 Locking prevention member 12a, 12b Screw hole 12c, 12d Tube part 12e Spacer part 20 Horizontal pipe 50 Mold apparatus 51 Male mold 52 Female mold 53, 54 Support shaft 55 Resin injection Type

Claims (4)

When attaching a suspension hand to a vehicle such as a train or bus, the ends of the suspension belt are folded back in a loop so that the both ends of the suspension belt and the middle portion of the suspension belt are stacked in three layers. Two clamping screws, a base provided with an insertion hole for the shaft portion of each clamping screw, and a screw hole for screwing the tip end portion of each clamping screw are provided. A seat plate of a fastening device for a suspension hand comprising a seat plate,
The seat plate is a metal female screw plate provided with two screw holes into which a tightening screw is screwed, and two screws for forcibly screwing the tip ends of the tightening screws protruding from the respective screw holes of the member. The synthetic resin loosening prevention member provided with the screw hole is covered and fixed by a synthetic resin outer material having a substantially rectangular or elliptical shape with a large thickness. A seat plate of a fastening device for a suspension hand. The seat plate of the tightening device for a suspension hand according to claim 1, wherein the outer shape member and the locking member are formed of a synthetic resin. The locking member is a spacer portion for providing two synthetic resin nuts or two synthetic resin cylinder members having a diameter slightly smaller than the diameter of the screw shaft of the tightening screw in parallel with a predetermined interval. The seat plate of the fastening device for a suspension hand according to claim 1 or 2, wherein the seat plate is integrally formed therewith. A suspension hand comprising the seat plate of the fastening device for a suspension hand according to any one of claims 1 to 3.

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