JPH10157618A - External vestibule diaphragm mounting device for preventing fall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an external vestibule diaphragm device for preventing a fall to facilitate demounting and mounting of the external vestibule diaphragm from and on the end part of a vehicle coupling surface. SOLUTION: In an external vestibule diaphragm for preventing a fall constituted such that an external vestibule diaphragm 7 formed of an elastic substance 3 is attached to the end part l of a vehicle coupling surface such that respective tip parts thereof are positioned opposite to each other, mounting of the external vestibule diaphragm 7 is effected by a slide guide frame 9 arranged at the end part 1 of the vehicle coupling surface and a slide fitment 16 arranged at the base part of the external vestibule diaphragm 7 and engaged with the slide guide frame 9 and effecting vertical slide operation, and the slide fitment 16 consists of a plurality of engaging body parts 17 formed at intervals of a proper distance in the vertical direction of the external vestibule diaphragm 7. The slide guide frame 9 comprises a plurality of release holes 12 to cause the engaging body part 17 to start the aforesaid engagement and release the engagement; and an engaging frame part 11 arranged adjacent to a release hole 12 to engage with the engaging body part 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fall prevention outer hood for preventing an accident of falling from a platform to a gap in a vehicle connecting surface of a passenger vehicle such as a train or a railcar (hereinafter abbreviated as a vehicle). It relates to a mounting device.

[0002]

2. Description of the Related Art As an outer hood for preventing such a fall, Japanese Utility Model No. 5
Japanese Unexamined Patent Publication No. 94047 discloses a fall prevention hood, which has been put into practical use. As shown in the plan view of FIG. 9 and the front view of FIG. 10, the fall prevention hood is fixed to the vehicle connection surface end 1 by welding or the like, and is made of U-shaped rubber elastic material. The bent ends 3a, 3a of the body 3 are
The elastic body 3 is attached to the vehicle connecting surface end 1 by a nut 6 screwed to a bolt 5 fixed to the hood mounting metal 2, thereby forming an outer hood 7. The mounting position of the outer hood 7 is just outside the step 8 for climbing on the roof.
The lower edge of the vehicle is about 3
It is a low position above 0 cm.

[0003]

The step 8 is used to climb on the roof for checking on-roof equipment such as a pantograph and an air conditioner, but the outer hood 7 hinders the climb. The outer hood 7 also hinders the operation of the jumper coupler when connecting or releasing the vehicle at the station. Therefore, when inspecting the equipment on the roof or the like, the outer hood 7 is detached and attached, but the detaching and attaching work is extremely difficult. That is, the nut 6 is screwed onto the bolt 5,
Removal is performed by inserting a wrench through a notch 3b provided in the elastic body 3. However, the screwing portion is surrounded by the U-shape of the elastic body 3 and cannot be seen directly, and the screwing and removal is hand-grip. In addition, about 8kg, length about 110cm, width about 20c
M must be screwed and removed while supporting the outer hood 7 with the hands.

The present invention has been made in view of these problems of the conventional mounting structure in the fall prevention outer hood, and has been devised so that the outer hood 7 can be easily removed from the vehicle connecting surface end 1 and mounted. It is an object of the present invention to provide a fall-preventing outer top mounting device for fall prevention.

A second object of the present invention is to attach an outer hood 7 to a fall-preventing hood which allows the outer hood 7 to be removed from the vehicle connecting surface end 1 and to be smoothly engaged without any twisting during the mounting operation. In providing the device.

A third object of the present invention is to prevent the initial operation of the above-mentioned engagement operation from being twisted without any distortion, and to facilitate the alignment in the mounting opposing direction for engagement. To provide an outer hood mounting device.

A fourth object of the present invention is to provide a fall prevention outer hood mounting apparatus which facilitates positioning of the outer hood 7 in the mounting depth direction in the initial operation of the engagement operation. is there.

A fifth object of the present invention is to provide a fall prevention outer hood mounting device in which the outer hood 7 is firmly supported and mounted. A sixth object of the present invention is to provide a fall prevention outer hood mounting device which can easily fix the outer hood 7.

[0009]

In order to achieve the above object, the present invention provides an outer cover 7 made of an elastic body 3 for preventing a fall from being attached to an end 1 of a vehicle connecting surface such that respective front ends thereof face each other. In the outer hood attachment device, the outer hood 7 is attached to the slide guide frame 9 provided at the vehicle connection surface end 1 and the slide guide frame 9 provided at the base of the outer hood 7 while being engaged.
The sliding bracket 16 is formed by a plurality of engaging members 17 formed at appropriate intervals in the up-down direction of the outer hood 7. A plurality of release holes 1 for the engagement body portion 17 to start the engagement or to release the engagement.
2 and an engagement frame portion 11 provided adjacent to the release hole 12 to engage with the engagement body portion 17. With such a configuration, the outer top 7 is mounted on the slide bracket 16.
Are inserted into the slide guide frame 9 from the plurality of release holes 12 of the slide guide frame 9, and the engagement body portions 17 are slightly engaged with the engagement frame portion 11 to release the release holes 1 slightly downward.
The slide operation is completed by the vertical length of 2. To remove the outer top 7, slide the slide bracket 16 to the slide guide frame 9.
Body 1 that is engaged by moving up or down with respect to
The sliding member 7 slides upwardly with respect to the engagement frame portion 11 by the vertical length of the release hole 12 slightly, so that the engagement body portion 17 is disengaged from the engagement frame portion 11.
It is completed by leaving outside.

According to the first aspect of the present invention, the sliding operation in the vicinity of the mounting position includes:
A guide groove 13 formed in the engagement frame portion 11 of the slide guide frame 9 so as to be closely joined to each other in the above-described facing direction of the outer top 7.
And the slide surface 20 formed on the engagement body 17 of the slide fitting 16. With this configuration, the own weight of the outer hood 7, which is downwardly attached near the mounting position, is tightly joined to the guide groove 13 of the slide guide frame 9 and the slide surface 20 of the slide fitting 16 in the direction in which the outer hood 7 is mounted. Therefore, the sliding operation near the mounting position at the time of detaching the outer top 7 from the vehicle connection surface end 1 and attaching the outer top 7 to the vehicle is smooth without distortion.

Further, in the fall prevention outer hood mounting device according to the second aspect, the guide groove 13 at the initial stage when the engagement is started.
In order to make the sliding operation between the sliding surface and the sliding surface 20 gentle, at least one of the guide groove 13 and the sliding surface 20 is provided with inclined surface portions 19b ₂ and 34b. With such a configuration, in the initial stage when the engagement of the engagement body 17 with the engagement frame 11 is started, the guide groove 13 and the slide surface 20 are formed by at least one of the inclined surfaces 19 b ₂ and 34 b of the guide groove 13 and the slide surface 20. Is smoothly performed, and the initial operation of the engagement operation is smooth without any distortion.
Moreover, the engaging body portion 1 to the engaging frame portion 11 in the mounting facing direction.
7 is easy to align.

Further, in the fall prevention outer hood mounting device according to claim 1, 2 or 3, the base of the outer hood 7 is moved from the outside when the engaging body 17 is seen through the release hole 12 for starting the engagement. The slide guide frame 9 is provided with alignment guide pieces 21 and 21 that can be loosely fitted. With this configuration, when the engaging body is viewed through the release hole 12 to start the engagement, the alignment guide pieces 21 and 21 are loosely fitted to the base of the outer top 7 from the outside, and the mounting position of the outer top 7 in the mounting depth direction is set. Is regulated, and positioning in the mounting depth direction in the initial operation of the engagement operation is facilitated.

[0013] In the fall prevention outer hood mounting device according to claim 1, 2, 3 or 4, the outer hood 7 at the mounting position.
The slide top frame 9 is provided with an outer top support 22 for supporting the lower end of the slide guide frame 9. With this configuration, the outer hood 7 is received by the outer hood receiver 22 of the slide guide frame 9 and is firmly attached to the vehicle connection surface end 1.

Further, in the fall-preventing outer hood mounting device according to the fifth aspect, a one-touch tightening device 23 for preventing upward movement of the outer hood 7 at the mounting position is provided. With this configuration, the outer hood 7 received by the outer hood receiver 22 is
It can be easily fixed to the slide guide frame 9 by the one-touch tightening tool 23.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view (partially cut away) of a fall prevention outer hood attachment device, and FIGS. 2 and 3 are slide guide frames 9 which are members constituting the attachment device.
FIG. 4 is a perspective view showing an example of each of the slide fittings 16 to which the outer top 7 is attached, and FIG. 4 is a plan view of FIG. The slide guide frame 9 is adjacent to a flat mounting portion 10 joined to the vehicle connection surface end 1 and a plurality (three in the illustrated example) of engagement frame portions 11 formed at intervals vertically. Engaging frame 11,
And a release hole 12 formed between the two. A guide groove 13 is provided in the engagement frame portion 11, and the guide groove 13 is connected to hook-shaped portions 14, 14 provided at front and rear ends of the mounting portion 10 and the mounting portion 10.
And the flat plate portion 15 provided inside the inside. In FIG. 2, the guide groove 13 includes an inner surface 15a of the flat plate portion 15 and inner surfaces 14a of the hook-shaped portions 14, 14 which are hook-shaped in plan view. As shown in FIG.
4 is a portion lacking the inner side surfaces 14a, 14a.

The slide fitting 16 is formed by a plurality (three in the illustrated example) of engaging bodies 17 fixed at appropriate intervals in the up-down direction to the hood mounting metal 2 forming the base of the outer hood 7. Make up. The vertical length of the engagement body 17 is slightly longer than the vertical length of the release hole 12 so that the engagement body 17 can be inserted into or removed from the release hole 12. , And the formation interval of the engagement frame portions 11, 11. The engaging body 17 includes a hood mounting part 18 that is joined and fixed to the hood mounting metal 2, and gate-shaped parts 19, 19 that are provided at the front and rear ends of the hood mounting part 18 and have a gate shape in plan view. The gate 19 has a slide surface 20 that engages with the guide groove 13 of the engagement frame 11. As shown in FIG. 4 showing the mounted state, the slide surface 20 is an inner surface 15a of the flat plate portion 15 which is the guide groove 13 and inner surfaces 1 of the hook-shaped portions 14, 14.
4a and 14a. In FIG. 3, the slide surface 20 is the gate-shaped upper surfaces 19a, 19a of the gate-shaped portions 19, 19.
And the portal foot surfaces 19b, 19b. Gate 1
As shown in FIG. 4, there is a slight gap between the outer surfaces 19 c and 19 c of the hooks 9 and 19 and the inner inner surfaces 14 b and 14 b of the hooks 14 and 14.

As a result, the weight of the outer hood 7 that faces downward near the mounting position is tightly joined to the guide groove 13 of the slide guide frame 9 and the slide surface 20 of the slide fitting 16 in the direction in which the outer hood 7 is mounted. 4 (the contact surface between the inner surface 15a and the portal upper surface 19a and the contact surface between the inner surface 14a and the portal foot surface 19b). Does not work due to gaps.
Therefore, when the outer hood 7 is detached from the vehicle connecting surface end 1 and is mounted near the mounting position, the sliding operation is performed only in the mounting opposing direction, so that the sliding operation is smoothly performed without any twisting. As shown in FIG. 3, the gate-shaped portion 19 has its gate-shaped foot surface 19b.
In the lower 19b ₁ which is the lower of the mounting positions formed only on the upper portion of the mounting position portal top 19a (gate-shaped leg surface 19
same thickness Satoshi as also thinner) than b, portal legs face 19b, while the lower 19b ₁ has an inclined surface portion 19b _2.

The slide guide frame 9 is provided with alignment guide pieces 21 and 21 outside the hook-shaped portion 14 at the upper end and the middle of the slide guide frame 9 so that the alignment guide pieces 21 and 21 are provided.
The inside dimension of the arrangement 1 is slightly longer than the front-rear width of the hood mounting metal 2 which is the base of the outer hood 7. During the operation of inserting the engaging body 17 into the release hole 12 for engaging the slide fitting 16 with the slide guide frame 9, the hood mounting metal 2, which is the base of the outer hood 7, plays with the alignment guide pieces 21, 21. By being fitted, alignment in the mounting depth direction in the initial operation of the engagement operation is facilitated. Slide guide frame 9
Is provided with an outer hood receiver 22 for supporting the lower end of the outer hood 7 at the mounting position in FIG. Further, a one-touch tightening device 23 for preventing the outer top 7 from moving upward at this mounting position is provided. In the illustrated one-touch tightening device 23, a hook 24 shown in FIG. 3 is provided at a lower end portion of the slide fitting 16, and when the pin 25 is engaged with the hook 24 to rotate the lever 26 downward, the spring 27 exceeds the fulcrum of the spring 27. A well-known clip 28 having a structure for pulling the hook 24 downward by operation is attached to the outer hood receiver 22 as shown in FIG. The mounting portion 10 of the engagement frame portion 11 is provided with a screw hole 29 for mounting to the vehicle connecting surface end 1 with a flathead screw.

The procedure for mounting the fall prevention outer top thus constructed will be described. Using a screw (not shown) inserted into the screw hole 29, the engagement frame 1
The first mounting portion 10 is joined and fixed. 5 (a) to 5 (c), which are cross-sectional views taken along the line VV in FIG. 4, show the mounting procedure.
Hold the slide bracket 16 by hand at the height where the engaging body 17 of the slide bracket 16 faces the release hole 12 of the slide guide frame 9.
(As shown in FIG. 5 (a), the uppermost engaging body 17 is positioned above the uppermost engaging frame 11.)
When the outer top 7 is approached toward 1, the top mounting metal 2 which is the base of the outer top 7 has upper and lower positioning guide pieces 21, 21 and 2 respectively.
The slide fitting 16 is fitted to the slide guide frame 9 at the installation depth direction position. At this time, the outer surfaces 19c, 19c of the gate-shaped portions 19, 19 of the slide fitting 16 are connected to the base inner side surfaces 14 of the hook-shaped portions 14, 14 of the slide guide frame 9.
Since the slide fitting 16 is loosely fitted to the slide guide frame 9, the slide fitting 16 is also fitted to the slide guide frame 9 at the mounting depth direction position by this loose fitting operation. As shown in FIG. 5A, the gate-shaped upper surface 19a of the gate-shaped portion 19 is slightly separated from the flat plate portion 15 in the mounting opposing direction, and then the outer top 7 is lowered. Then 5 portal top 19a and bottom 19b ₁ of the portal portion 19 as shown in (b) is started enters the hook portion 14, the inclined surface portion 19b ₂
Contacts the inner side surface 14a of the hook-shaped portion 14 and continues
With the in downward, the upper surface 19a of the gate-shaped portion 19 in such a state that the inclined surface portion 19b ₂ slides down the inner surface 14a is the flat plate portion 1
5 gradually approaches the inner surface 15a. In the initial stage in which the engagement of the engagement body 17 with the engagement frame 11 is started in this manner,
Inner surface 15a of flat plate portion 15 as guide groove 13, hook-shaped portion 14
And the inner side surface 14a of gate-shaped upper surface 19a of the gate-shaped portion 19 is a slide surface 20, the engagement operation of the portal legs face 19b, moderate in the state as inclined surface portion 19b ₂ slides down the inner surface 14a, It starts smoothly without any kink.

[0020] In this structure of the inclined surface portion 19b ₂ only gate-shaped leg surface 19b without alignment of the mounting facing direction in FIG. 5 (a) must be very accurately performed.
However, combined in approximate position to the extent that slightly away than the flat plate portion 15 in the opposing direction mounting portal top 19a in the above embodiment has an inclined surface portion 19b _2, the inclined surface portion 1
9b ₂ slides down the inner side surface 14a, so that the engagement body 17 is securely engaged with the engagement frame 11, so that the positioning in the mounting facing direction is easy.

When the outer hood 7 reaches the mounting position in FIG. 1, the lower end of the outer hood 7 (slide fitting 16) rides on the outer hood receiver 22 below the slide guide frame 9. A gate-shaped upper surface 19a of the inner surface 15a is portal section 19 of the flat plate portion 15 contacts is lost between the inner surface 14a of the hook portion 14 and the inclined surface portion 19b ₂ as shown in FIG. 5 (c) in this state, hook The inner side surfaces 14a of the portions 14, 14 are closely joined to the portal foot surface 19b, respectively. In the vicinity of this mounting position, the weight of the outer hood 7 that faces downward is the point where the guide groove 13 of the slide guide frame 9 and the slide surface 20 of the slide fitting 16 are closely joined to each other in the direction in which the outer hood 7 is mounted (the inner surface). 15a, portal-shaped upper surface 19a and inner surface 14a
And the gate-shaped foot surface 19b), and does not act in the transverse direction orthogonal to these contact surfaces due to the clearance shown in FIG. Therefore, when the outer hood 7 is detached from the vehicle connecting surface end 1 and is mounted near the mounting position, the sliding operation is performed only in the mounting opposing direction, so that the sliding operation is smoothly performed without any twisting.

The outer hood 7 is placed on the outer hood receiver 22 and the hook 24 is
Is engaged with the pin 25 of the clip 28, and the lever 26 is turned downward.
Is pulled downward, and the outer top 7 is easily and firmly fixed to the slide guide frame 9. The vertical vibration of the outer top 7 during running is reliably prevented by the clip 28.

[0023] In the embodiment of FIG 3, the side of the slide surface 20 a is inclined to the side of the gate-shaped portion 19 face 19b ₂ a provided guide grooves 13 was a flat inner surface 14a in the vertical direction, and this Conversely, as shown in FIG. 6A, an inclined surface portion 34b is provided on the inner side surface 34a of the hook-shaped portion 34 which is the guide groove 33, and FIG.
The gate-shaped upper surface 3 of the gate-shaped portion 39 which is the slide surface 30 as shown in FIG.
9a, the portal foot surface 39b can be flattened to form the second embodiment. FIG. 7 is a plan view showing an attached state of the second embodiment. Other than the above, the second embodiment has the same structure as the first embodiment of FIG. 8 (a) to 8 (c) which are cross-sectional views corresponding to the arrows VIII-VIII in FIG.
Shows the installation procedure. As shown in FIG. 8A, the uppermost engaging body 17 faces the uppermost engaging frame 11, and the engaging body 17 of the slide fitting 16 is set in the release hole 12 of the slide guide frame 9. The outer top 7 is brought closer to the alignment guide pieces 21 and 21 and the outer top 7 is lowered.

As shown in FIG. 8B, the gate-shaped upper surface 3 of the gate-shaped portion 39 is formed.
9a begins to enter the hook 34, and the portal foot 39b slides down the slope 34b of the hook 34. And Sotoro 7
At the mounting position where the lower end of the (slide fitting 16) rides on the outer hood receiver 22 below the slide guide frame 9, the gate-shaped upper surface 39a of the gate-shaped portion 39 becomes the inner surface 15a of the flat plate portion 15, as shown in FIG.
In addition, the gate-shaped foot surfaces 39b are closely joined to the inner surface 34a of the hook-shaped portion 34, respectively. Also in the second embodiment, in the initial stage when the engagement of the engagement body portion 17 with the engagement frame portion 11 is started, the portal foot surface 3
9b slides down the inclined surface portion 34b, and starts smoothly and without kinks. In addition, it is easy to adjust the engagement position of the engagement body 17 with the engagement frame 11 in the mounting facing direction. Although illustration is omitted, the same effects as in the above embodiments can be obtained by providing inclined surfaces on both the gate-shaped portion and the hook-shaped portion.

[0025]

As described above, according to the present invention, the following effects can be obtained. That is, according to the first aspect of the present invention, the outer cover 7 is attached by inserting the plurality of engaging members 17 of the slide fitting 16 into the slide guide frame 9 from the plurality of release holes 12 of the slide guide frame 9, Combine unit 17 with engaging frame 1
This is completed by sliding downward slightly by the vertical length of the detachment hole 12 while engaging with the first. The outer cover 7 can be removed by sliding the slide fitting 16 upwardly with respect to the slide guide frame 9 by the vertical length of the release hole 12 slightly, so that the engagement body 17 comes off the engagement frame portion 11. The procedure is completed when the user slides out of the slide guide frame 9. With the present invention, the inconvenience of screwing and removing with a hand gesture while supporting the heavy and large outer top 7 by hand as in the conventional mounting structure using bolts and nuts has been eliminated by the present invention.

According to the second aspect of the present invention, the weight of the outer hood 7 which is downwardly attached near the mounting position is equal to the sliding surface of the guide groove 13 of the slide guide frame 9 and the slide fitting 16 in the direction in which the outer hood 7 is mounted. Since it acts on a portion where the outer cover 7 is closely connected to the vehicle 20, the outer hood 7 is smoothly removed from the vehicle connecting surface end 1 at the vicinity of the mounting position in the vicinity of the mounting position.

According to the third aspect of the present invention, at the initial stage when the engagement of the engagement body portion 17 with the engagement frame portion 11 is started, the guide groove 1 is provided.
3. At least one inclined surface portion 19b of the slide surface 20
The sliding operation between the guide groove 13 and the sliding surface 20 is performed gently by ₂ and 34b, and the initial operation of the engaging operation is smooth without any twist. In addition, it is easy to adjust the engagement position of the engagement body 17 with the engagement frame 11 in the mounting facing direction.

According to the fourth aspect of the present invention, when the engaging portion is viewed through the release hole 12 to start the engagement, the positioning guide pieces 21 and 21 are loosely fitted to the base of the outer top 7 from the outside. The position of the outer cover 7 in the mounting depth direction is regulated, and the positioning in the mounting depth direction in the initial operation of the engagement operation is facilitated.

According to the fifth aspect of the present invention, in the mounting position, the outer hood 7 is received by the outer hood receiver 22 of the slide guide frame 9 and is firmly mounted on the vehicle connecting surface end 1.

According to the sixth aspect of the present invention, the outer hood 7 received by the outer hood receiver 22 can be easily fixed to the slide guide frame 9 by the one-touch tightening tool 23, so that the outer hood 7 during traveling can be fixed.
Vertical vibration is reliably prevented by the one-touch fastener 23.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a fall prevention outer hood attachment device.

FIG. 2 is a perspective view of a slide guide frame which is a component of the mounting device of FIG.

FIG. 3 is a perspective view of a slide fitting that is a component of the mounting device of FIG. 1;

FIG. 4 is a plan view of FIG. 1;

FIG. 5 is an explanatory diagram of a mounting procedure of the first embodiment of FIG. 1;

FIG. 6 is an exploded perspective view showing a second embodiment of the present invention.

FIG. 7 is a plan view showing a second embodiment of the present invention.

FIG. 8 is an explanatory view of a mounting procedure of the second embodiment of FIG. 7;

FIG. 9 is a plan view showing a conventional outer top mounting.

FIG. 10 is a front view of FIG. 9;

[Explanation of symbols]

1 vehicle coupling surface end 7 the outer hood 9 slide guide frame 11 engaging frame portion 12 leaving holes 16 slide bracket 17 engaging body portion 19b _2, 34b light inclined surface portion 20 slide surface 21 aligned guide piece 22 outer hood receiving 23 one-touch fastening Ingredient

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Mori Ide 3-4-2 Marunouchi, Chiyoda-ku, Tokyo Japan Traffic Machinery Co., Ltd. (72) Akira Yagi 3-4-2, Marunouchi, Chiyoda-ku, Tokyo Inside Japan Traffic Machinery Co., Ltd.

Claims (6)

[Claims] 1. A fall prevention outer hood mounting device for mounting an outer hood made of an elastic body to an end of a vehicle connection surface such that respective ends thereof face each other, wherein the outer hood is attached to the vehicle connection surface end. The slide guide frame provided on the base and the slide bracket provided on the base of the outer hood that can slide up and down while engaging with the slide guide frame. The slide guide frame has a plurality of release holes and a plurality of engagement holes for the engagement body part to start or release the engagement. A fall prevention outer hood mounting device, comprising: an engagement frame portion provided adjacent to the release hole so as to engage with the portion. 2. The slide operation in the vicinity of the mounting position includes a guide groove formed in an engagement frame portion of a slide guide frame and an engagement body portion of a slide fitting so as to be closely joined to each other in the facing direction of the outer hood. 2. A fall prevention outer hood mounting device according to claim 1, wherein the outer hood mounting device is configured to be performed by a slide surface formed on the outer hood. 3. An inclined surface portion is provided on at least one of the guide groove and the slide surface in order to moderate the sliding operation between the guide groove and the slide surface at the beginning of the engagement. The fall prevention outer hood mounting device according to claim 2. 4. The slide guide frame is provided with an alignment guide piece which allows the base of the outer hood to be loosely fitted from the outside when the engagement body is viewed through the release hole for starting the engagement. The fall prevention outer hood attachment device according to claim 1, 2, or 3. 5. The outer hood mounting device according to claim 1, wherein an outer hood receiver for supporting a lower end of the outer hood at the mounting position is provided on the slide guide frame. 6. A fall prevention outer hood mounting device according to claim 5, further comprising a one-touch tightening device for preventing upward movement of the outer hood at the mounting position.