JP6966931B2 - Heater fixing structure and heater fixing method - Google Patents

Description

The present invention relates to a heater fixing structure for fixing a heater and a heater fixing method.

Generally, railroad vehicles in cold regions are provided with a heater below the rail guide for the door so that the door and the rail guide for the door that guides the door do not freeze in winter (for example,). , Patent Document 1). Conventionally, as shown in FIG. 7, the heater 101 extends from the door pocket to the rail guide 103 for getting on and off doors in order to prevent freezing in the door pocket, in addition to preventing the rail guide 103 for getting on and off doors and getting on and off doors from freezing. It is installed in. The heater 101 is placed on the heater receiving portion 105, and the heater pressing portion 107 provided above the heater 101 presses the heater 101 to prevent the heater 101 from being displaced.

Patent No. 3645102

However, the conventional heater fixing structure (see FIG. 7) has the following problems. The heater 101 repeats expansion and contraction by switching the power ON / OFF. Therefore, due to the expansion and contraction of the heater 101, the heater 101 may move in the axial direction and the position of the heater 101 may shift. As a result, when the heater 101 is displaced to the door pocket side, the mold wiring 109 protruding from the heater receiving portion 105 may float. As a result, when the entrance / exit door is housed in the door pocket, the mold wiring 109 and the entrance / exit door come into contact with each other, and the entrance / exit door and the mold wiring 109 are damaged, or the copper wire in the mold wiring 109 is disconnected due to this contact. There is a problem of doing.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a heater fixing structure and a heater fixing method for preventing the position shift of the heater due to expansion and contraction of the heater.

(Aspect of the invention)
The following aspects of the invention exemplify aspects of the invention and are described separately in order to facilitate understanding of the various components of the invention. The following sections do not limit the technical scope of the present invention, and while taking into consideration the best embodiment of the present invention, some of the components of each section are replaced, deleted, or further. A mode in which other components are added can also be a mode of the present invention.

(1) A heater fixing structure that is located at the lower part of the rail guide for the entrance / exit door and the door pocket provided at the entrance / exit opening of the vehicle and fixes the heater extending from the door pocket to the rail guide for the entrance / exit door. A fixing having a channel-shaped portion on which the heater is placed, sandwiching the heater receiving portion fixed to a component of the vehicle, the heater and the heater receiving portion, and fixing the heater to the heater receiving portion. A heater fixing structure comprising a portion (claim 1).
(2) A heater fixing method for fixing a heater extending from the door pocket to the rail guide for the entrance / exit door, which is located at the lower part of the rail guide for the entrance / exit door and the door pocket provided at the entrance / exit opening of the vehicle. A heater receiving portion having a channel-shaped portion to be mounted is fixed to a component member of the vehicle, a fixing portion is provided so as to sandwich the heater and the heater receiving portion, and the fixing portion provides the heater receiving portion to the heater receiving portion. A heater fixing method for fixing a heater (claim 6).

Since the heater fixing structure and the heater fixing method according to this section are provided with a heater receiving portion having a channel-shaped portion on which the heater is placed, by storing the heater in the channel-shaped portion, a railroad vehicle (including a tram) is provided. ), Vibration caused by the running of a vehicle such as a bus, etc., prevents the heater from falling from the heater receiving portion. Further, in the heater fixing structure and the heater fixing method according to this section, the heater and the heater receiving portion are sandwiched, and the fixing portion for fixing the heater is provided in the heater receiving portion. It is fixed to the heater receiving part. Therefore, even if the heater expands or contracts due to the switching of the power ON / OFF of the heater, the heater receiving portion is fixed to the constituent members of the vehicle, so that the position shift of the heater can be prevented.

(3) In the above item (1), the fixing portion has a first fixing tool and a second fixing tool for sandwiching the heater and the heater receiving portion from above and below, and the first fixing tool has the heater receiving portion. The first fixture is arranged below the channel-shaped portion of the portion, and the second fixture is arranged above the channel-shaped portion of the heater receiving portion and follows the cross-sectional shape of the channel-shaped portion of the heater receiving portion. A heater fixing structure in which a groove is formed (claim 2).
(4) In the above item (2), the fixing portion has a first fixing tool and a second fixing tool for sandwiching the heater and the heater receiving portion from above and below, and the first fixing tool is the heater receiving portion. The second fixture is arranged below the channel shape portion of the above to form a first groove that follows the cross-sectional shape of the channel shape portion of the heater receiving portion, and the first groove is the heater receiving portion. A heater fixing method (claim 7) in which the second fixture is arranged above the channel-shaped portion of the heater receiving portion so as to face the channel-shaped portion.

In the heater fixing structure and the heater fixing method according to this section, the fixing portion has a first fixing tool and a second fixing tool for sandwiching the heater and the heater receiving part from above and below. The first fixture is arranged below the channel-shaped portion of the heater receiving portion, and the second fixture is arranged above the channel-shaped portion of the heater receiving portion. With this configuration, the holding force of the first fixture and the second fixture is applied from above and below the heater and the heater receiving portion, so that the heater is securely fixed to the heater receiving portion, and even if the heater expands or contracts, the heater is heated. It will prevent the misalignment of. Further, in the heater fixing structure and the heater fixing method according to this section, the second fixture has a first groove formed to follow the cross-sectional shape of the channel shape portion of the heater receiving portion, so that the heater receiving portion is fixed to the second. When fitted into the first groove of the tool, the heater receiving portion is stably held in the first groove. Further, the contact area between the heater receiving portion and the second fixing portion is sufficiently secured, and the fixing between the two is strengthened.

(5) In the above item (3), a heater fixing structure (claim 3) in which a second groove that imitates the outer shape of the heater is formed on the bottom surface of the first groove of the second fixture.
(6) In the above item (4), a heater fixing method (claim 8) in which a second groove that imitates the outer shape of the heater is formed on the bottom surface of the first groove of the second fixture.

In the heater fixing structure and the heater fixing method according to this section, a second groove that imitates the outer shape of the heater is formed on the bottom surface of the first groove of the second fixture, so that the heater is fitted into the second groove. When it is made to do so, the heater is more stably held in the second groove. Further, a sufficient contact area between the heater and the second groove is secured, and the fixing between the two is strengthened.

(7) In the above item (3) or (5), the heater fixing structure is such that a space for inserting the first fixture is formed between the floor plate constituting the door pocket and the heater receiving portion. A heater fixing structure (claim 4) including a connecting portion for connecting the heater receiving portion and the floor plate of the door pocket.
(8) In the above (4) or (6) section, the said heater fixing method, between floor and the heater receiving part constituting the door pockets, space for inserting the first fastener is formed A heater fixing method (claim 9) in which a connecting portion for connecting the heater receiving portion and the floor plate of the door pocket is provided in an embodiment.

In the heater fixing structure and the heater fixing method according to the present mode, the consolidated portion, between the floor plate and the heater receiving part constituting the door pocket, and a heater receiving portion in a manner that the space for inserting the first fastener is formed It is connected to the floor plate of the door pocket. With this configuration, a place for inserting the first fixture is secured between the floor plate and the heater receiving portion of the first fixture, and the first fixture is placed below the channel shape portion of the heater receiving portion. It will be easy to place.

(9) In any one of the above (1), (3), (5) and (7), the end of the heater receiving portion on the door pocket side is fixed to the vehicle body structure portion facing the door pocket. The flange to be formed is formed,
The fixing portion has a heater fixing structure (claim 5) arranged at a position where the fixing portion abuts on the flange.
(10) In any one of the above (2), (4), (6) and (8), the end portion of the heater receiving portion on the door pocket side is fixed to the vehicle body structure portion facing the door pocket. Form a flange,
The heater fixing method (claim 10) in which the fixing portion is arranged at a position where it comes into contact with the flange.

In the heater fixing structure and the heater fixing method according to this section, a flange to be fixed to the vehicle body structure facing the door pocket is formed at the end of the heater receiving portion on the door pocket side, and the fixing portion is positioned at a position where it abuts on the flange. Since it is arranged, the fixing portion can be easily and reliably positioned with respect to the heater receiving portion, and the fixed portion can be prevented from moving toward the door pocket (the end side of the heater receiving portion on the door pocket side).

The present invention can provide a heater fixing structure and a heater fixing method for preventing the position shift of the heater due to expansion and contraction of the heater as described above.

It is a schematic front view of the heater fixing structure provided near the doorway opening of a vehicle which concerns on one Embodiment of this invention. It is a perspective view of the heater fixing structure shown in FIG. FIG. 2 is a partially enlarged perspective view of the rail guide side for the entrance / exit door of the heater fixing structure shown in FIG. 2. FIG. 2 is a partially enlarged perspective view of the heater fixing structure shown in FIG. 2 on the door pocket side. FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. FIG. 3 is a cross-sectional view taken along the line BB shown in FIG. It is a perspective view of the heater fixing structure of the prior art.

Hereinafter, the configuration of the heater fixing structure according to the embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6.
First, as shown in FIGS. 1 and 2, the heater 3 is provided corresponding to each of the plurality of doors 5 and 5, and specifically, a railroad vehicle (including a tram), a bus, or the like. It is located at the bottom of the rail guide 8 for the entrance / exit door and the door pocket 7 (see the one-point chain line in FIG. 1) provided at the entrance / exit opening 6 of the vehicle, and extends from the door pocket 7 to approximately the center of the entrance / exit opening 6 of the vehicle. (In the example of FIG. 1, the vicinity of the entrance / exit of a railroad vehicle is shown). A module wiring 4 is provided at the end of the heater 3 on the door pocket 7 side.

The heater fixing structure 1 of the present invention fixes each of the plurality of heaters 3 at predetermined positions, and can be applied to existing railway vehicles and vehicles such as buses. As shown in FIGS. 1 to 6, the heater fixing structure 1 includes a heater receiving portion 11, a fixing portion 12, and a connecting portion 13.
The heater fixing structure 1 on the right side of the paper and the heater fixing structure 1 on the left side of the paper shown in FIG. 1 have the same structure. Therefore, for convenience of explanation, only the configuration of the heater fixing structure 1 on the right side will be described, and the description of the configuration of the heater fixing structure 1 on the left side will be omitted.

The heater receiving portion 11 is located at the lower part of the rail guide 8 for the entrance / exit door and the door pocket 7, and extends from the door pocket 7 to substantially the center of the doorway opening 6 of the vehicle (see FIG. 1). The heater receiving portion 11 has a channel shape portion 15 (see FIGS. 3 to 6), and the heater 3 is placed on the channel shape portion 15. Further, a flange 16 fixed to a vehicle body structure portion (not shown) facing the door pocket 7 is formed at an end portion of the heater receiving portion 11 on the door pocket 7 side. The heater receiving portion 11 is fixed to a vehicle component 9 (see FIG. 5) and a floor plate 7a (see FIG. 1) constituting the door pocket 7 via a connecting portion 13 described later.

The fixing portion 12 is arranged so as to abut on the flange 16 of the heater receiving portion 11, and is composed of a first fixing tool 18 and a second fixing tool 19 that sandwich the heater 3 and the heater receiving portion 11 from above and below (FIG. FIG. 4 and FIG. 6). The first fixing portion 18 and the second fixing portion 19 are fastened by using bolts 20 (see FIGS. 4 and 6). The first fixture 18 has a rectangular plate shape in a plan view, and a plurality of screw holes 21 (four in the present embodiment) into which bolts 20 are inserted are formed. The second fixture 19 has a rectangular thick plate or a block shape in a plan view, and a first groove 22 that follows the cross-sectional shape of the channel shape portion 15 of the heater receiving portion 11 is formed, and the first groove 22 is formed on the bottom surface of the first groove 22. Has a second groove 23 that follows the outer shape of the heater 3 (see FIG. 6). Further, the second fixing portion 19 is formed with a plurality of insertion holes 24 (four in the present embodiment) for inserting the bolt 20 so as to correspond to the screw holes 21 of the first fixing tool 18.

The connecting portion 13 is configured such that a space 26 (see FIGS. 1 and 4) into which the first fixing portion 18 is inserted is formed between the floor plate 7a constituting the door pocket 7 and the heater receiving portion 11. .. In the present embodiment, the connecting portion 13 (connecting portion 13a) provided at the end of the heater receiving portion 11 on the door pocket 7 side has a Z shape in cross-sectional view, and the upper wall plate is connected to the heater receiving portion 11 and is below. The wall plate is connected to the floor plate 7a (see FIG. 6). Further, the connecting portion 13 (connecting portion 13b) provided at the end of the vehicle entrance / exit opening 6 side is a rectangular parallelepiped member (see FIG. 3), and is between the heater receiving portion 11 and the vehicle constituent member 9. Arranged (see Figure 5). As for the shape of these connecting portions 13, an appropriate shape is used for each vehicle.

Next, a method of fixing the heater by the heater fixing structure 1 according to the embodiment will be described below with reference to FIGS. 2 to 6.
First, the heater 3 is placed in the channel shape portion 15 of the heater receiving portion 11. Then, the heater 3 and the heater receiving portion 11 are sandwiched from above and below by the fixture 12. At this time, the fixture 12 is arranged so as to come into contact with the flange 16 of the heater receiving portion 11. Specifically, the first fixture 18 is inserted into the space 26 formed between the heater receiving portion 11 and the floor plate 7a constituting the door pocket 7, and is arranged below the channel shape portion 15 of the heater receiving portion 11. do. Further, the second fixture 19 is arranged above the heater 3 so that the first groove 22 of the second fixture 19 faces the channel shape portion 15, and the channel shape portion 15 is provided in the first groove 22. To fit. At this time, the heater 3 is fitted into the second groove 23 of the second fixture 19. Then, the bolt 20 is inserted into the insertion hole 24 of the second fixture 19 and screwed into the screw hole 21 of the first fixture 19 to fasten the first fixture 18 and the second fixture 19.

According to the heater fixing structure 1 of one embodiment having the above configuration, the following effects can be obtained. That is, since the heater fixing structure 1 is provided with the heater receiving portion 11 having the channel shape portion 15 on which the heater 3 is placed, the heater 3 can be housed in the channel shape portion 15 to form a railroad vehicle (also a tram). It is possible to prevent the heater 3 from falling from the heater receiving portion 11 due to vibration (including) or vibration caused by traveling of a bus or the like.

Further, according to the heater fixing structure 1, since the fixing portion 12 for sandwiching the heater 3 and the heater receiving portion 11 and fixing the heater 3 to the heater receiving portion 11 is provided, the heater is supported by the holding force of the fixing portion 12. 3 is fixed to the heater receiving portion 11. Therefore, even if the heater 3 expands and contracts due to the switching of the power ON / OFF of the heater 3, the heater receiving portion 11 is fixed to the vehicle component 9 via the connecting portion 13, so that the heater It is possible to prevent the misalignment of 3.

Further, according to the heater fixing structure 1, the fixing portion 12 has a first fixing tool 18 and a second fixing tool 19 for sandwiching the heater 3 and the heater receiving portion 11 from above and below. The first fixture 18 is arranged below the channel-shaped portion 15 of the heater receiving portion 11, and the second fixture 19 is arranged above the channel-shaped portion 15 of the heater receiving portion 11. With this configuration, the holding force of the first fixture 18 and the second fixture 19 is applied from above and below the heater 3 and the heater receiving portion 11, so that the heater 3 is securely fixed to the heater receiving portion 11 and the heater 3 is expanded and expanded. Even if expansion and contraction occurs, it is possible to prevent the heater 3 from being displaced.

According to the heater fixing structure 1, since the second fixture 19 is formed with the first groove 22 that follows the cross-sectional shape of the channel shape portion 15 of the heater receiving portion 11, the heater receiving portion 11 is set to the second fixture 19. When fitted into the first groove 22 of the above, the heater receiving portion 11 can be stably held in the first groove 22. Further, it is possible to secure a sufficient contact area between the heater receiving portion 11 and the second fixing portion 19 and to firmly fix both.

According to the heater fixing structure 1, a second groove 23 that follows the outer shape of the heater 3 is formed on the bottom surface of the first groove 22 of the second fixture 19, so that the heater 3 is fitted into the second groove 23. When it is made to do so, the heater 3 is held more stably in the second groove 23. Further, it is possible to secure a sufficient contact area between the heater 3 and the second groove 23 and to firmly fix the two.

According to the heater fixing structure 1, the connecting portion 13 (connecting portion 13a) forms a space 26 for inserting the first fixing portion 18 between the floor plate 7a constituting the door pocket 3 and the heater receiving portion 11. The heater receiving portion 11 and the floor plate 7a of the door pocket 7 are connected to each other. As a result, a place for inserting the first fixture 18 is secured between the floor plate 7a and the heater receiving portion 11 for the first fixture 18, and the channel shape portion of the heater receiving portion 11 for the first fixture 18. Below 15 can be more easily placed.

According to the heater fixing structure 1, a flange 16 fixed to the vehicle body structure facing the door pocket 7 is formed at the end of the heater receiving portion 11 on the door pocket 7 side, and the fixing portion 12 is in contact with the flange 16. Since it is arranged in, the fixing portion 12 is easily and reliably positioned with respect to the heater receiving portion 11 and prevents the fixing portion 12 from moving in the door pocket 7 direction (the end side of the heater receiving portion 11 on the door pocket side). It becomes possible to do.

Although the first fixture 18 of the heater fixing structure 1 according to the embodiment has a rectangular shape in a plan view, it may have another shape such as a square or a trapezoid as appropriate. Further, the second fixture 19 can be appropriately changed according to the shape of the first fixture 18.

Further, in the heater fixing structure 1 according to the embodiment, the second fixing tool 19 has a thickness larger than that of the first fixing tool 18, so that the deep counterbore 28 for accommodating the head of the bolt 20 (FIG. FIG. 6) is provided. However, if necessary, the first fixture 18 and the second fixture 19 in the figure are exchanged, the second fixture 19 is arranged below the channel shape portion 15 of the heater receiving portion 11, and the first fixture is placed. 18 may be arranged above the heater 3. In this case, the first fixing tool 18 is provided with the insertion hole 24, and the second fixing tool 19 is provided with the screw hole 21 so that the bolt 20 can be attached and detached from above. Further, if the second groove 23 is provided on the side of the first fixture 18 having a rectangular plate shape in a plan view, the same effect as the above example can be obtained.

Further, in the heater fixing structure 1 according to the embodiment, the first fixing tool 18 and the second fixing tool 19 are formed with four screw holes 21 and four insertion holes 24 for inserting the bolt 20. The number of holes 21 and insertion holes 24 may be appropriately changed.

1 ... Heater fixed structure, 3 ... Heater, 7 ... Door pocket, 8 ... Rail guide for getting on and off, 11 ... Heater receiving part, 12 ... Fixed part, 15 ... Channel shape part

Claims (10)

It is a heater fixing structure that is located at the lower part of the rail guide for the entrance / exit door and the door pocket provided at the entrance / exit opening of the vehicle and fixes the heater extending from the door pocket to the rail guide for the entrance / exit door.
A heater receiving portion having a channel-shaped portion on which the heater is placed and fixed to a component of the vehicle, and a heater receiving portion.
A heater fixing structure comprising the heater and a fixing portion for fixing the heater to the heater receiving portion by sandwiching the heater receiving portion. The fixing portion has a first fixing tool and a second fixing tool that sandwich the heater and the heater receiving portion from above and below.
The first fixture is arranged below the channel-shaped portion of the heater receiving portion.
The second fixture is arranged above the channel-shaped portion of the heater receiving portion, and is characterized in that a first groove that imitates the cross-sectional shape of the channel-shaped portion of the heater receiving portion is formed. Item 1. The heater fixing structure according to Item 1. The heater fixing structure according to claim 2, wherein a second groove that imitates the outer shape of the heater is formed on the bottom surface of the first groove of the second fixture. The heater fixing structure connects the heater receiving portion and the floor plate of the door pocket in such a manner that a space for inserting the first fixture is formed between the floor plate constituting the door pocket and the heater receiving portion. The heater fixing structure according to claim 2 or 3, further comprising a connecting portion. A flange to be fixed to the vehicle body structure facing the door pocket is formed at the end of the heater receiving portion on the door pocket side.
The heater fixing structure according to any one of claims 1 to 4, wherein the fixing portion is arranged at a position in contact with the flange. It is a heater fixing method for fixing a heater extending from the door pocket to the rail guide for the entrance / exit door, which is located at the lower part of the rail guide for the entrance / exit door and the door pocket provided at the entrance / exit opening of the vehicle.
A heater receiving portion having a channel-shaped portion on which the heater is placed is fixed to a component of the vehicle.
A fixing portion is provided so as to sandwich the heater and the heater receiving portion.
A heater fixing method comprising fixing the heater to the heater receiving portion by the fixing portion. The fixing portion has a first fixing tool and a second fixing tool that sandwich the heater and the heater receiving portion from above and below.
The first fixture is arranged below the channel-shaped portion of the heater receiving portion.
The second fixture forms a first groove that follows the cross-sectional shape of the channel-shaped portion of the heater receiving portion, and the first groove faces the channel-shaped portion of the heater receiving portion. 2. The heater fixing method according to claim 6, wherein the fixture is arranged above the channel-shaped portion of the heater receiving portion. The heater fixing method according to claim 7, wherein a second groove that imitates the outer shape of the heater is formed on the bottom surface of the first groove of the second fixture. In the heater fixing method , the heater receiving portion and the floor plate of the door pocket are provided in such a manner that a space for inserting the first fixture is formed between the floor plate constituting the door pocket and the heater receiving portion. The heater fixing method according to claim 7 or 8, wherein a connecting portion for connecting is provided. The end of the heater receiving portion on the door pocket side forms a flange to be fixed to the vehicle body structure portion facing the door pocket.
The heater fixing method according to any one of claims 6 to 9, wherein the fixing portion is arranged at a position in contact with the flange.

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