JP2018072431A - Mounted bracket for camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounted bracket for a camera, for mounting the camera for taking images of a front side of a cargo handling work vehicle to the cargo handling work vehicle.SOLUTION: A fixing structure part 13 is constituted so that a connection part 15 is disconnected from a fixing part 17 when moment equal to disconnection moment or larger acts on a bracket body 11. By this configuration, when the bracket body 11 collides with a cargo and the like, the connection part 15 is easily disconnected from the fixing part 17 together with the bracket body 11. It thus becomes possible to suppress occurrence of such large damage as significant bending of the bracket body 11 in the bracket body 11 and damage of the cargo and the like.SELECTED DRAWING: Figure 3

Description

  The present application relates to a camera mounting bracket used when a camera is mounted on a cargo handling work vehicle such as a forklift.

  For example, the invention described in Patent Document 1 has a camera for photographing the front side of the vehicle and an electric cylinder for moving the camera. The electric cylinder moves the camera between a position shifted from the vehicle body in the vehicle width direction (hereinafter referred to as an operating position) and a position on the vehicle body side.

JP 2006-69778 A

  In the invention described in Patent Document 1, the electric cylinder operates when the operator operates the lever switch. That is, the camera continues to maintain the current position unless the operator operates the lever switch.

  For this reason, when the camera is in the operating position during the cargo handling operation, the electric cylinder may come into contact with or collide with a wall or cargo due to carelessness of the operator, and the electric cylinder or cargo may be damaged.

  If the electric cylinder is damaged, it is disadvantageous in terms of repair costs. Therefore, the present application provides a camera mounting bracket in consideration of the above points.

  In the present application, there are a bracket main body (11) having a mounting portion (11A) to which a camera is attached, and a fixing structure portion (13) for fixing the bracket main body (11) to the cargo handling work vehicle. A fixed portion (17) fixed in a stationary state, and a fixed structure portion (13) provided on the bracket body (11) and having a connecting portion (15) removably connected to the fixed portion (17). The fixed structure portion (13) is configured such that the connecting portion (15) is detached from the fixed portion (17) when a moment greater than a predetermined size acts on the bracket body (11). .

  Thereby, when a bracket main body (11) collides with a cargo etc. by carelessness of an operator, a connection part (15) removes easily from a fixing | fixed part (17) with a bracket main body (11). That is, when the bracket main body (11) collides with a cargo or the like, the bracket main body (11) is detached from the fixing portion (17) before the bracket main body (11) or the cargo or the like is largely damaged.

  Therefore, it is possible to prevent the bracket body (11) from being greatly damaged, such as the bracket body (11) being bent, and to damage the cargo, etc., and to fix the detached bracket body (11) to the fixing portion (17). If it connects to, the said bracket main body (11) can be reused.

The “moment greater than a predetermined magnitude” is a moment that is large enough to achieve the above-described action, and is a moment that is determined by trial and error.
Specifically, the moment is, for example, a connection strength smaller than the connection strength when the bracket body (11) is connected to the fixed portion (17) by “JIS standard screw”, “JIS standard welding method” or the like. Is a moment corresponding to.

  Incidentally, the reference numerals in the above parentheses are examples showing the correspondence with the specific configurations described in the embodiments described later, and the present invention is limited to the specific configurations indicated by the reference numerals in the parentheses. It is not something.

1 is a side view of a cargo handling work vehicle 1 according to an embodiment of the present invention. It is A arrow directional view of FIG. It is a figure which shows the mounting bracket 10 for cameras which concerns on 1st Embodiment of this invention. It is a figure which shows the mounting bracket 10 for cameras which concerns on 1st Embodiment of this invention. A and B are views showing a connecting portion 15 according to the first embodiment of the present invention. A and B are views showing the fixing portion 17 in the first embodiment of the present invention. It is a figure which shows the mounting bracket 10 for cameras which concerns on 2nd Embodiment of this invention.

  The “embodiment of the invention” described below shows an example of an embodiment belonging to the technical scope of the present invention. In other words, the invention specific items described in the claims are not limited to the specific configurations and structures shown in the following embodiments.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the arrow etc. which show the direction attached | subjected to each figure are described in order to make it easy to understand the relationship between each figure. The present invention is not limited to the directions given in the drawings.

At least one member or part described with at least a reference numeral is provided, except where “one” or the like is omitted. That is, two or more members may be provided.
(First embodiment)
1. 1. Mounting Position of Camera Mounting Bracket In this embodiment, as shown in FIG. 1, a camera mounting bracket 10 according to the present invention is applied to a reach forklift type cargo handling work vehicle 1. The camera mounting bracket 10 is mounted on the post portion 5 that supports the head guard 3.

  As shown in FIG. 2, the head guard 3 is a protective member for covering an operator who operates the cargo handling work vehicle 1 from above the head. The post portions 5 according to this embodiment are provided on both sides of the head guard 3 in the width direction.

  The camera mounting bracket 10 is mounted on at least one post portion 5. In the present embodiment, it is attached to the left post portion 5 toward the vehicle front side. That is, the camera mounting bracket 10 is mounted on the post portion 5 on the side opposite to the boarding position of the operator in the vehicle left-right direction.

  The monitor 7 is a display unit on which an image taken by the camera 9 attached to the camera mounting bracket 10 is displayed. That is, the monitor 7 is attached to the post portion 5 to which the camera mounting bracket 10 is attached, and is disposed on the opposite side of the camera 9 with the post portion 5 interposed therebetween in the left-right direction of the vehicle.

2. Structure of Camera Mounting Bracket As shown in FIG. 3, the camera mounting bracket 10 includes a bracket body 11, a fixing structure portion 13, and the like. The bracket body 11 has an attachment portion 11A to which the camera 9 is attached.

  The bracket body 11 according to the present embodiment includes a stay portion 11B provided with an attachment portion 11A, a stay holding portion 11C provided with a connecting portion 15 (see FIG. 4), and the like. The stay portion 11 </ b> B is a strip-shaped portion that extends in a substantially horizontal direction in a state where the camera mounting bracket 10 is mounted on the post portion 5.

  The stay holding portion 11 </ b> C is a portion that faces the post portion 5 when the camera mounting bracket 10 is attached to the post portion 5 and to which the stay portion 11 </ b> B is fixed. In the present embodiment, the stay portion 11B and the stay holding portion 11C are both made of iron-based metal, and are joined and integrated by welding or the like in a substantially orthogonal state.

  The fixing structure portion 13 is a structure portion for fixing the bracket body 11 to the post portion 5. In the present embodiment, a plurality of fixed structure portions 13 are provided. These fixed structure parts 13 are arranged along the longitudinal direction of the post part 5, that is, the vertical direction. In the present embodiment, all the fixed structure portions 13 have the same structure.

  As shown in FIG. 4, each fixed structure portion 13 includes a connecting portion 15 and a fixed portion 17. The fixing portion 17 is a portion that is fixed to the post portion 5 in an immobile state. The connecting portion 15 is a portion that is provided on the bracket body 11 and is detachably connected to the fixing portion 17.

  Each fixed structure portion 13 is configured such that the connecting portion 15 is detached from the fixed portion 17 when a moment (hereinafter referred to as a disengagement moment) of a predetermined size or more acts on the bracket body 11. ing.

  Specifically, the fixed portion 17 and the connecting portion 15 are connected by an attractive force due to magnetic force. For this reason, when a moment exceeding the moment that can be generated by the suction force acts on the bracket body 11, the connecting portion 15 is detached from the fixing portion 17.

  That is, as shown in FIG. 5A, the connecting portion 15 includes a magnet portion 15A, a ring portion 15B, and the like. The magnet portion 15A is a member that induces a magnetic field and includes a permanent magnet.

  The ring portion 15B is an annular member surrounding the magnet portion 15A (see FIG. 5B), and is made of a ferromagnetic material such as an iron-based metal. The thickness dimension D1 of the ring portion 15B is larger than the thickness dimension D2 of the magnet portion 15A. For this reason, magnet part 15A will be in the state where it was depressed in ring part 15B, without magnet part 15A projecting from ring part 15B.

  As shown in FIG. 6A, the fixing portion 17 is a portion that can come into contact with the fixing portion 17 on a surface 17 </ b> A (hereinafter referred to as a connecting surface 17 </ b> A) that intersects with the vertical direction, and is a portion that is fixed to the post portion 5. It is. The connecting surface 17A according to the present embodiment is a tapered surface inclined with respect to the direction from the connecting portion 15 side toward the fixed portion 17 side.

  The “direction from the connecting portion 15 side toward the fixing portion 17 side” corresponds to the substantially horizontal direction in a state where the bracket body 11 is mounted on the post portion 5. For this reason, the connecting surface 17A can contact the connecting portion 15 (ring portion 15B) at least on the upper end side and the lower end side with respect to the connecting portion 15 (ring portion 15B).

  As shown in FIG. 6B, the connecting surface 17A according to the present embodiment is a conical surface that is annularly continuous so that the diameter decreases toward the post portion 5 side. Can also contact the connecting portion 15. That is, the connecting surface 17A can contact the connecting portion 15 in an annular range with the vehicle width direction as the central axis.

  As shown in FIG. 5A, a tapered surface 15C having the same taper angle as that of the connecting surface 17A is provided at a portion of the ring portion 15B that contacts the connecting surface 17A. For this reason, in the state where the connecting portion 15 is fixed, the connecting surface 17A and the tapered surface 15C come into contact with each other.

  The fixed portion 17 is made of a ferromagnetic material such as an iron-based metal similarly to the ring portion 15B. The post portion 5 is also made of an iron-based metal such as a steel plate. For this reason, the electromagnetic attraction force of the magnet portion 15 </ b> A acts on both the fixing portion 17 and the post portion 5.

  And the fixing | fixed part 17 is located inside the outermost surface 1A of a vehicle body, as shown in FIG. As shown in FIG. 2, the outermost surface 1 </ b> A of the vehicle body is, for example, a portion having a maximum dimension value in the vehicle width direction.

3. Features of Camera Mounting Bracket According to this Embodiment The fixing structure portion 13 according to this embodiment is configured such that the connecting portion 15 is detached from the fixing portion 17 when a moment greater than the detachment moment acts on the bracket body 11. Has been.

  Thereby, when the bracket main body 11 collides with cargo etc. by carelessness of an operator, the connection part 15 detach | leaves from the fixing | fixed part 17 with the bracket main body 11 easily. That is, when the bracket main body 11 collides with the cargo or the like, the bracket main body 11 is detached from the fixing portion 17 before the bracket main body 11 or the cargo or the like is largely damaged.

  Therefore, it is possible to prevent the bracket body 11 from being damaged significantly, such as the bracket body 11 being bent, and to damage the cargo and the like. If the detached bracket body 11 is connected to the fixing portion 17, the bracket body 11 can be reused.

The magnitude of the “separation moment” is a moment that can achieve the above-described action, and is a moment that is determined by trial and error.
Specifically, the “separation moment” corresponds to a connection strength smaller than the connection strength when the bracket body 11 is connected to the fixed portion 17 by, for example, “JIS standard screw” or “JIS standard welding method”. Moment.

  The bracket body 11 is connected to the cargo handling work vehicle 1 side such as the post portion 5 via a flexible string member (not shown) such as a wire. For this reason, even if the bracket main body 11 is detached from the fixing portion 17, the bracket main body 11 does not fall on the ground or the floor.

  In this embodiment, the fixing | fixed part 17 and the connection part 15 are connected by the attractive force by a magnetic force. Thereby, the fixed structure part 13 can be easily comprised by selecting the permanent magnet which comprises the magnet part 15A.

  In the present embodiment, the connecting surface 17A between the fixed portion 17 and the connecting portion 15 is configured as a tapered surface. Thereby, when attaching the connection part 15 to the fixing | fixed part 17, the connection part 15 is guided by the connection surface 17A, and an automatic centering function is exhibited. Therefore, the connecting portion 15 can be mounted at an appropriate position with respect to the fixed portion 17.

  In the present embodiment, the magnet portion 15A is depressed in the ring portion 15B without the magnet portion 15A protruding from the ring portion 15B. Thereby, since magnet part 15A can be protected by ring part 15B, it can control that magnet part 15A is damaged.

  In this embodiment, the fixing | fixed part 17 and the ring part 15B are comprised with ferromagnetic materials, such as an iron-type metal. Thereby, the magnetic flux induced by the magnet portion 15A can be concentrated on the fixed portion 17 and the ring portion 15B of the ferromagnetic material, and the magnetic flux density of the connecting surface 17A can be increased. As a result, the electromagnetic attractive force can be increased.

  By the way, the electromagnetic attractive force in the shear direction orthogonal to the direction of the magnetic flux is smaller than the electromagnetic attractive force in the normal direction parallel to the direction of the magnetic flux. For this reason, when a load in the shearing direction (for example, the vertical direction) acts on the bracket body 11, the bracket body 11 may be detached from the fixing portion 17 with a relatively small force.

  On the other hand, in the present embodiment, the connecting surface 17A is in contact with the connecting portion 15 at least at the upper end side and the lower end side with respect to the connecting portion 15, and therefore receives a load in the vertical direction at the connecting surface 17A. Is also possible. Therefore, it is possible to suppress the bracket body 11 from being detached from the fixing portion 17 with a relatively small force.

  Similarly, the connecting surface 17A according to the present embodiment can receive the load before and after the vehicle by the connecting surface 17A because the connecting surface 17A is in contact with the connecting portion 15 in the vehicle front-rear direction. Therefore, it is possible to suppress the bracket body 11 from being detached from the fixing portion 17 with a relatively small force.

  In this embodiment, the fixing | fixed part 17 is located inside the outermost surface 1A of a vehicle body. For this reason, after the bracket main body 11 is detached from the fixing portion 17, it is possible to suppress the fixing portion 17 from interfering with an obstacle such as cargo.

(Second Embodiment)
As shown in FIG. 7, each fixing portion 17 according to the present embodiment is configured to have a holding body 17 </ b> B that holds the connecting portion 15 from both sides in an elastically deformed state. Each clamping body 17B is comprised with the material excellent in elasticity, such as a spring steel material.

  Each connection part 15 is comprised by the rod-shaped member extended in the vehicle front-back direction. And each clamping body 17B has pinched the rod-shaped member which makes the connection part 15 from an up-down direction. Therefore, when the bracket body 11 collides with cargo or the like, the connecting portion 15 is easily detached from the fixing portion 17 together with the bracket body 11.

Note that the same constituent elements as those of the above-described embodiment are denoted by the same reference numerals as those of the above-described embodiment, and thus redundant description is omitted.
(Other embodiments)
In the first embodiment, the connecting portion 17A is provided on the fixed portion 17, and the tapered surface 15C having the same taper angle as the connecting surface 17A is provided on the ring portion 15B. However, the invention disclosed in this specification is not limited to this.

  That is, for example, (a) a configuration in which at least one of the connecting surface 17A and the tapered surface 15C is eliminated, or (b) a configuration in which the post portion 5 functions as the fixed portion 17 may be used. In the case of (b), the connecting portion 15 constituted by the magnet portion 15 </ b> A is attracted to the post portion 5 while being in contact with the post portion 5.

  In the first embodiment, the magnet portion 15A is depressed in the ring portion 15B without the magnet portion 15A protruding from the ring portion 15B. However, the invention disclosed in this specification is not limited to this. That is, for example, (a) a configuration in which the ring portion 15B is abolished, and (b) a configuration in which the thickness dimension D1 of the ring portion 15B is equal to or less than the thickness dimension D2 of the magnet portion 15A.

  The ring portion 15B according to the first embodiment is made of a ferromagnetic material such as an iron-based metal. However, the invention disclosed in this specification is not limited to this. That is, for example, the ring portion 15B may be formed of a nonmagnetic material such as resin.

  The connection surface 17A according to the first embodiment is a surface inclined with respect to the vertical direction. However, the invention disclosed in this specification is not limited to this. That is, for example, the connecting surface 17A may be a surface orthogonal to the vertical direction.

  The fixed structure portion 13 of the present application is not limited to the structure shown in the above embodiment. That is, for example, the configuration may be such that the fixing portion 17 and the connecting portion 13C are joined by a technique having a low joining strength such as soldering.

  In 1st Embodiment, the fixing | fixed part 17 was a ferromagnetic body, and the connection part 15 was comprised with a permanent magnet. However, the invention disclosed in this specification is not limited to this. That is, for example, the fixed portion 17 may be configured with a permanent magnet, and the connecting portion 15 may be configured with a ferromagnetic material.

  The connecting surface 17A according to the first embodiment is a conical surface that is annularly continuous so that the diameter decreases toward the post portion 5 side. However, the invention disclosed in this specification is not limited to this. That is, for example, it may be a conical surface that is annularly continuous so that the diameter increases toward the post portion 5 side.

  In the above-described embodiment, the present invention is applied to the reach forklift. However, the invention disclosed in this specification is not limited to this. That is, for example, the present invention can be applied to other cargo handling work vehicles such as counter-type forklifts.

  Furthermore, the present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims. Therefore, you may combine at least 2 embodiment among several embodiment mentioned above.

DESCRIPTION OF SYMBOLS 1 ... Cargo work vehicle 3 ... Head guard 5 ... Post part 7 ... Monitor 9 ... Camera 10 ... Camera mounting bracket 11 ... Bracket main body 11A ... Mounting part 11B ... Stay part 11C ... Stay holding part 13 ... Fixed structure part 15 ... Connection Part 15A ... Magnet part 15B ... Ring part 15C ... Tapered surface 17 ... Fixed part 17A ... Connection surface

Claims (5)

In the mounting bracket for the camera used when mounting the camera on the cargo handling work vehicle,
A bracket body having a mounting portion to which the camera is mounted;
A fixing structure for fixing the bracket main body to the cargo handling work vehicle, wherein the bracket main body is fixed to the cargo handling work vehicle in a stationary state, and the bracket main body is provided in the bracket main body and is detachably connected to the fixing portion. A fixed structure portion having a connected portion,
The mounting bracket for a camera is configured so that the connecting portion is detached from the fixing portion when a moment greater than a predetermined magnitude acts on the bracket body.   The camera mounting bracket according to claim 1, wherein the fixing portion and the connecting portion are connected by an attractive force generated by a magnetic force.   The mounting bracket for a camera according to claim 2, wherein a connecting surface between the fixing portion and the connecting portion is tapered with respect to a direction from the connecting portion side toward the fixing portion side.   The mounting bracket for a camera according to claim 1, wherein the fixing portion includes a clamping body that sandwiches the coupling portion from both sides in a state of being elastically deformed. In a cargo handling vehicle that performs cargo handling work,
A head guard for covering the operator from above;
A post portion for supporting the head guard;
A camera for shooting mounted on the post via the camera mounting bracket according to any one of claims 1 to 4,
The fixed portion is fixed to the post portion, and the fixed portion is located on the inner side of the outermost surface of the vehicle body.

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